This is related to bug #1457206 and bug #1717000. The first bug (for atk) fixed Evolution, but causes memory leaks, about which is the second bug. This should be fixed on the Evolution side.
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, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHSA-2020:1080