P: Collection name can enter multiple lines but...

[remov_b4_flight]

Collection name can enter string multiple lines. but, only first line appears on root collection set tree.
This must be bug and fix it ether way.
1. Inhibit multi-line collection name.
2. Multi-line collection names are ok, appear it to collection trees.

[Rikk Flohr: Photography]

Are you Mac or PC?
How are you entering the second line of text in the Collection Name or are you pasting it in?

[remov_b4_flight]

Mac.
Probably, collection names entered as multiple lines in my catalog, Pasted from web browser.