This problem has been fixed in upstream of NetworkManager:
Please verify it when NetworkManager release new version in RHEL 8.3.
Created attachment 1698030 [details]
verified in versions:
Linux hp-dl388g8-08.rhts.eng.pek2.redhat.com 4.18.0-214.el8.x86_64 #1 SMP Fri Jun 12 08:55:08 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
see the attachment for the details
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (nmstate bug fix and enhancement update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.