$ git clone -n https://src.fedoraproject.org/rpms/plasma-desktop.git /var/lib/mock/f41-build-1180102-21872/root/chroot_tmpdir/scmroot/plasma-desktop
Cloning into '/var/lib/mock/f41-build-1180102-21872/root/chroot_tmpdir/scmroot/plasma-desktop'...
$ git fetch origin 281b15f1e9853601a18d220ff9dd29130abbc092:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-desktop
 * [new ref]         281b15f1e9853601a18d220ff9dd29130abbc092 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 281b15f feat: 6.1.1