Can't close "Manage owners" without modifying???

[yarikoptic]

While looking at

• Fix display of dandisets with many owners #2272
  I went to https://dandiarchive.org/dandiset/000026 and clicked on "Manage Owners" to get

(not sure if that is all of them since contributors list is larger, or just scrolling is not there, somewhat related: #2353 ).

But then

• clicking outside of the modal window, which for "Metadata" modal closes it, just "blinks" the modal here and does not close
• clicking on "DONE" gives me another, scarry dialog

and since I do NOT want to modify, I click on NO, but that also does not close it. I have to close tab to resolve

I think logical changes would be to harmonize behavior with meditor:

• clicking outside would close it (as does for Meditor/Metadata) without doing changes, but retaining changes if brought back up

• BETTER complimentary/alternative is to replace DONE with the same buttons/logic as we have in Meditor, for no changes:

and if changes are there:

edit 1: interesting related behavior with meditor -- if I have that modal with changes not saved present, attempt to close the tab leads to message: