SCUMM: FT: softlock when fast-exiting room before scripted cutscene

[AndywinXp]

ScummVM version: 2.2.0 and latest dev builds
Full Throttle version: Italian (which could potentially mean every version is affected) and English (Version B)
Bug: Ben walks in place for an infinite amount of time and the cutscene never starts (effectively softlocking the game), unless you press ESC, which skips the cutscene.

How to reproduce: when arriving at Maureen's for the first time, exit her workshop; the journalist will address you "I thought you were dead" and a conversation will start. Choose the options "There has been an ambush" and "I need a lift"; exit the conversation, and fast-exit the current room by doubleclicking at the left edge of the screen.

PLEASE NOTE: this appears to be a SCUMM walkbox/path-finding related bug, since it also affects COMI in a different way (see ticket #12029)

See the attached video**