There are some changes in weekly build which could resolve this problem,
please try it. What SVN connector do you use?
> Eclipse Java EE - v3.5.2
> Subversive SVN Team Provider (Incubation) 0.7.9.I20100512-1900
> When the SVN repo (HTTPS) password is stored in Eclipse, but it is
> changed on server and the user tries to commit a (single) changed file,
> it silently fails. No error dialog.
> The I resynced and the it asked for the new password.