Verified on 71.0b11 and 68.0.2esr and it seems that the issue is no longer present. Selections work as it should.
Bug 1581864 Comment 10 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
Verified on 71.0b11 and 68.0.2esr and it seems that the issue is no longer present. Selections work as they should.