$ git clone -n https://src.fedoraproject.org/rpms/libraqm.git /var/lib/mock/f45-build-16836-491/root/chroot_tmpdir/scmroot/libraqm
Cloning into '/var/lib/mock/f45-build-16836-491/root/chroot_tmpdir/scmroot/libraqm'...
$ git fetch origin 50bb38e595b98ba3c20b03a6368feb2687927f9f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libraqm
 * [new ref]         50bb38e595b98ba3c20b03a6368feb2687927f9f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 50bb38e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild