Fix crash by not clearing the kPlatformIcon prop
Fix crash by not clearing the kPlatformIcon prop

As visible in Instantbird

nmaier/mintrayr,nmaier/mintrayr,jeffkowalski/mintrayr,nmaier/mintrayr,nmaier/mintrayr,jeffkowalski/mintrayr,jeffkowalski/mintrayr,jeffkowalski/mintrayr