Floating applications list has a lot of duplicates

[mutantcornholio]

Describe the bug
I just opened a list of floating windows, in order to delete something, and there are hundreds of apps, and same ids are being repeated for tens of times.

Expected behavior
Duplicate rules aren't appearing by themselves

Screenshots

Versions:

• macOS: 10.15.6
• Amethyst: 0.15.3 (88)

Debug Info
(over 3k lines, as you would expect for this bug)
https://gist.github.com/mutantcornholio/a979f784c7467bfec6bc7e61ae402ee7