There appears to be no link to the password reset form (assuming the app has one) from the login form.
There also does not appear to be a normal way to change your password (e.g. as on Special:Preferences). This was brought to my attention by https://ticket.wikimedia.org/otrs/index.pl?Action=AgentTicketZoom&TicketID=7645643
Version: Stable
Severity: normal
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=30788