Merge Boolean does not create clean edge

[Ridgehammer]

I'm having an issue merging two overlapping fills. When I select both fills and use the merge boolean operation, the edge does not cut cleanly or flush and instead leaves a gap.
Here is how it looks prior to using the boolean merge:

Here is the result after I merged the gray and pink shapes using the merge boolean. It left the strange gap

Here is the VS source file :
0_1765764671449_merge boolean issue.vstyler

[VectorStyler]

@Ridgehammer I opened a bug on this and will try to find a solution