Color picker functionality in the IntelliJ gutter is broken by making small code edits

Editing a line after it already has a color values makes the color icon stop being editable for some reason. For example, adding a const where one was missing reproduces this. Wrapping a color value with parens also reproduces the issue.
If you delete the line with the color value and paste it again, then the color picker works correctly so the issue has something to do with updates made when an existing icon already shows in the gutter.