Nothing is changed between the edits while I am testing. I simple select to edit the page, change a simple text value to "test" then press the Save Changes button. Then I select Edit and change text value to "test2" then press the Save Changes button. Then select Edit and change the text value to "test3" and continue with this test until it fails.
I did add the CollapsibleVector extension and change some of my extensions to the new ones after I did the initial upgrade, so I went ahead and rat the mw-config again just now to see if that would improve matters but it did not. The very first edit I did after this triggered the exact same error....page was not saved and error message indicated database may not have been updated.
When I run the upgrade it states:
Environmental checks
Basic checks will now be performed to see if this environment is suitable for MediaWiki installation. Remember to include this information if you seek support on how to complete the installation.
PHP 7.1.6 is installed.
Warning: Could not find APCu, XCache or WinCache.
Object caching is not enabled.
GNU diff3 not found.
Found ImageMagick: C:\ImageMagick\convert.exe.
Image thumbnailing will be enabled if you enable uploads.
Git version control software not found.
Using server name "http://wiki".
Using server URL "http://wiki/wikilincluden".
Warning: Your default directory for uploads C:\inetpub\wwwroot\WikiLincluden/images/ is vulnerable to arbitrary scripts execution.
Although MediaWiki checks all uploaded files for security threats, it is highly recommended to close this security vulnerability before enabling uploads.
Warning: The intl PECL extension is not available to handle Unicode normalization, falling back to slow pure-PHP implementation.
If you run a high-traffic site, you should read a little on Unicode normalization.
The environment has been checked. You can install MediaWiki.
Then:
Upgrade existing installation
There are MediaWiki tables in this database. To upgrade them to MediaWiki 1.28.2, click Continue
Then pressing Continue:
Upgrade existing installation
...index ls_field_val already set on log_search table.
...index change_tag_rc_tag already set on change_tag table.
...have rd_interwiki field in redirect table.
...transcache tc_time already converted.
...fulltext search table appears to be in order.
...iwlinks table already exists.
...index iwl_prefix_title_from already set on iwlinks table.
...have ul_value field in updatelog table.
...have iw_api field in interwiki table.
...iwl_prefix key doesn't exist.
...have cl_collation field in categorylinks table.
...module_deps table already exists.
...ar_page_revid key doesn't exist.
...index ar_revid already set on archive table.
...index user_email already set on user table.
...uploadstash table already exists.
...user_former_groups table already exists.
...index type_action already set on logging table.
...batch conversion of user_options: nothing to migrate. done.
...user table does not contain user_options field.
...have rev_sha1 field in revision table.
...have ar_sha1 field in archive table.
...index page_redirect_namespace_len already set on page table.
...have us_chunk_inx field in uploadstash table.
...have job_timestamp field in job table.
...index page_user_timestamp already set on revision table.
...have ipb_parent_block_id field in ipblocks table.
...index ipb_parent_block_id already set on ipblocks table.
...category table does not contain cat_hidden field.
...have rev_content_format field in revision table.
...have rev_content_model field in revision table.
...have ar_content_format field in archive table.
...have ar_content_model field in archive table.
...have page_content_model field in page table.
Content Handler DB fields should be usable now.
...site_stats table does not contain ss_admins field.
...recentchanges table does not contain rc_moved_to_title field.
...sites table already exists.
...have fa_sha1 field in filearchive table.
...have job_token field in job table.
...have job_attempts field in job table.
...have us_props field in uploadstash table.
...ug_group in table user_groups already modified by patch patch-ug_group-length-increase-255.sql.
...ufg_group in table user_former_groups already modified by patch patch-ufg_group-length-increase-255.sql.
...index pp_propname_page already set on page_props table.
...index img_media_mime already set on image table.
...index iwl_prefix_from_title already set on iwlinks table.
...have ar_id field in archive table.
...have el_id field in externallinks table.
...have rc_source field in recentchanges table.
...index log_user_text_type_time already set on logging table.
...index log_user_text_time already set on logging table.
...have page_links_updated field in page table.
...have user_password_expires field in user table.
...have pp_sortkey field in page_props table.
...recentchanges table does not contain rc_cur_time field.
...index wl_user_notificationtimestamp already set on watchlist table.
...have page_lang field in page table.
...have pl_from_namespace field in pagelinks table.
...have tl_from_namespace field in templatelinks table.
...have il_from_namespace field in imagelinks table.
...hitcounter doesn't exist.
...site_stats table does not contain ss_total_views field.
...page table does not contain page_counter field.
...fa_deleted_reason in table filearchive already modified by patch patch-editsummary-length.sql.
...msg_resource_links doesn't exist.
...msg_resource doesn't exist.
...bot_passwords table already exists.
...have wl_id field in watchlist table.
...cl_collation key doesn't exist.
...index cl_collation_ext already set on categorylinks table.
...collations up-to-date.
...index rc_name_type_patrolled_timestamp already set on recentchanges table.
...have ct_id field in change_tag table.
...have ts_id field in tag_summary table.
...site_stats is populated...done.
Purging caches...done.
Upgrade complete.
You can now start using your wiki
It seems to me that the database upgrade message is not the cause of the pages not saving or else I would think that I would be unable to post messages every time I make an attempt. The database upgrade error message appears whether the page posts ok or not.
Thank you for helping me try to figure this out.