[4.3] PISTON-1142: continue config menu after deleting VM temp greeting

[danielfinke]

• Resolves crash after deleting temporary greeting

[harenson]

Hi @danielfinke may you please provide the steps to reproduce the crash? Thanks.

[danielfinke]

Hey @harenson, the crash will be possible, currently, if the config menu is entered due to "announcement_only": true on the voicemail box. check_mailbox_menu/2 skips the main menu and goes right to the config menu, as it should. The crash will occur in the <<"check">> clause of handle/2 when the temporary greeting is deleted. Rather than add an extra clause to handle a mailbox return at the top level handle/2 call, which would have to go thru check_mailbox/2 etc. all over again, I just changed the post-delete action to go back to the config menu, like other config options.