AGS: Repeated mouseclicks cause erratic behavior

[tag2015]

This could be related to recent changes in the AGS engine.
Using latest dev version the mouseclicks in AGS games don't work normally, registering multiple clicks every time.

This can be easily noticed using maniac mansion deluxe:

• When choosing the kids, the selection boxes flicker multiple times. It is also quite difficult to deselect a character.
• When walking, if the button is kept pressed the character "moonwalks" in place, instead of completing the path.

This is especially annoying during dialogues, since it can skip lines.

Bugs also occur in recent games such as Shardlight or The Exacavation at Hob's Barrow.
ScummVM 2.7.0git (Oct 12 2022 21:20:13) Win10

[criezy]

This was fixed in ​https://github.com/scummvm/scummvm/pull/4574