QFG4: Crash when trying to parry with a dagger and a Thief with no Parry skill

[darksoul42]

On this version of ScummVM:
ScummVM 2.1.0git (Sep 9 2018 17:36:39)
Features compiled in: Vorbis FLAC MP3 ALSA SEQ TiMidity RGB zLib MPEG2 FluidSynth Theora AAC FreeType2 JPEG PNG

I just started a Thief character with no magic and no parry skill at all, and tried to fight a Wraith. When going to strategy mode, it seems it tried to parry but this caused the following error and crash:

WARNING: Uninitialized read for parameter 2 from method CT::init (room 810, script 64992, localCall ffffffff)!
WARNING: Uninitialized read for parameter 2 from method CT::init (room 810, script 64992, localCall ffffffff)!
ERROR: Invalid arithmetic operation (bitwise OR - params: 0035:1999 and 0000:0001) from method xParryLow::doit (room 810, script 41, localCall ffffffff)!

Strangest was that it seems possible to parry without crashing when doing it by hand.

[darksoul42]

Just before fighting the Wraith

[digitall]

​Pull Request: SCI32: Fix QFG4 conditional void calls

[bluegr]

Thanks for your work! The pull request has been merged, so this can be closed now