$ git clone -n https://src.fedoraproject.org/rpms/pangomm2.48.git /var/lib/mock/f41-build-side-1-2650387-27586/root/chroot_tmpdir/scmroot/pangomm2.48
Cloning into '/var/lib/mock/f41-build-side-1-2650387-27586/root/chroot_tmpdir/scmroot/pangomm2.48'...
$ git fetch origin ba68edec565ec8b02482e62dc25abf43209eebd0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pangomm2.48
 * [new ref]         ba68edec565ec8b02482e62dc25abf43209eebd0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ba68ede Update to 2.54.0