Changing password continuously is throwing errors

[BhargaviNadendla]

[lmmrssa]

Even though, I see password change error message on snackbar while trying to login new password works and not old.

[paulbert]

There are two separate errors thrown here. For the scope of this issue, let's work on the second error:

• The first error for the _session endpoint is due to an incorrect password entered into the "Old Password" field. We have an open issue Refactor DialogsFormComponent & DialogsFormService #1527 that would allow the dialog to better handle errors.
• The second error is due to the update to the _users database not including the current _rev. The new password works for administrators because the update to the admins on _config works. This means the admin & the matching user will end up with different passwords.