$ git clone -n https://src.fedoraproject.org/rpms/kteatime.git /var/lib/mock/f42-build-side-1-3541387-46580/root/chroot_tmpdir/scmroot/kteatime
Cloning into '/var/lib/mock/f42-build-side-1-3541387-46580/root/chroot_tmpdir/scmroot/kteatime'...
$ git fetch origin 2c81b227a271b793b725467c721320b65b853b2a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kteatime
 * [new ref]         2c81b227a271b793b725467c721320b65b853b2a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2c81b22 25.04.2