$ git clone -n https://src.fedoraproject.org/rpms/plasma-workspace.git /var/lib/mock/f38-build-side-42-init-devel-678504-26700/root/chroot_tmpdir/scmroot/plasma-workspace
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-678504-26700/root/chroot_tmpdir/scmroot/plasma-workspace'...
$ git fetch origin f672b9888e272a0ba40615d1a2e87c4565a50e06:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-workspace
 * [new ref]         f672b9888e272a0ba40615d1a2e87c4565a50e06 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f672b98 Bump sddm Obsoletes for F38+