SUMMARY

On touch screen devices, Use "Two (or Three) finger drag" for sampling foreground color cause three SAFE ASSERT warning popup, ignore them all and krita just crash.

Crashlog from terminal
```
krita.input: KisAbstractInputAction "Alternate Invocation" tried to process event data from an unhandled event type QEvent::TouchCancel
SAFE ASSERT (krita): "m_d->strokeId" in file /builds/graphics/krita/libs/ui/tool/KisAsyncColorSamplerHelper.cpp, line 224
SAFE ASSERT (krita): "!m_sanityIsStarting" in file /builds/graphics/krita/libs/global/kis_signal_compressor.cpp, line 210
SAFE ASSERT (krita): "m_d->strokeId" in file /builds/graphics/krita/libs/ui/tool/KisAsyncColorSamplerHelper.cpp, line 224

Thread 1 "krita" received signal SIGSEGV, Segmentation fault.
0x00007ffff79b0d74 in KisAbstractShortcut::shortcutIndex() const ()
   from /tmp/.mount_krita-rWENdf/usr/bin/../lib/libkritaui.so.20

```

Opensuse Leap 15.6
krita-5.3.0-prealpha-242de665a4-x86_64.appimage

STEPS TO REPRODUCE
1. On a touch Screen, Set Canvas Input Setting > Alternate Invocation > Gesture | Two Finger Drag | Sampling Foreground Color
2.  Draw on Canvas, and use gesture to sample color
3. Safe assert popup, ignore them all and crash


ADDITIONAL INFORMATION
Tested on Android 12 in early August "5.3.0-prealpha" build also has the same issue.