As a follow up of T172026: [wmf.11] "Number of edits to show in recent changes ..." form accepts invalid numbers
wmf.12 does not have the issue.
- Select in Preferences-Recent changes 'Number of edits to show...' =1
- Recent changes page won't display 1 on 'Show last changes' button. The drop down selector is fine.
Note: 0 number of edits will be displayed as all other user -defined settings.
