As a BW main, I can confirm this bug/issue has been happening for years, and severely limits one of blaze wizard's main mobbing abilities. It is also problematic day-to-day because if you … (more)accidentally cast orbital flame before using flashfire, you risk disconnecting yourself and losing most of your buffs.
This would be huge to have this bug fixed in GMS.
Here is another example from KMS where this bug has been fixed:
