I know you didn't ask about F29 upgrades, but it looks like it might work:
Removing:
kernel x86_64 5.2.7-100.fc29
@updates-testing 0
kernel-core x86_64 5.2.7-100.fc29
@updates-testing 66 M
kernel-modules x86_64 5.2.7-100.fc29
@updates-testing 28 M
kernel-modules-extra x86_64 5.2.7-100.fc29
@updates-testing 2.1 M
Enabling module streams:
gimp 2.10
Transaction Summary
=================================================================================================================
Install 135 Packages
Upgrade 2417 Packages
Remove 4 Packages
Total download size: 3.0 G
Is this ok [y/N]: n
Operation aborted.