Selecting multiple target bundles for group-content content types doesn't work

[argiepiano]

As reported by @schoenid in #45 (comment). Opening a separate issue for follow-up:

If you select two [target bundles], out of a list of maybe 10 content-groups (multiple selections), the content can only be assigned to the first selected Target bundle. The other selected bundles or content groups do not show up in the content, where you could assign it.

As example: I configure "Posts" to be assigned to "Editor-Groups" and "Author-Groups" but not to "Visitor-Groups", so "Posts" should be group content belonging either to "Editor-Groups" or "Author-Groups". But only the first one "Author-Groups" is listed. So I can add Posts-content only to groups of type "Author-Groups", but not to groups of type "Editor-Groups".

[schoenid]

Thank you, @argiepiano