$ git clone -n https://src.fedoraproject.org/rpms/avogadro2.git /var/lib/mock/f41-build-848751-164558/root/chroot_tmpdir/scmroot/avogadro2
Cloning into '/var/lib/mock/f41-build-848751-164558/root/chroot_tmpdir/scmroot/avogadro2'...
$ git fetch origin 41a12536d5ffd50dfb2271a77d33b68c4615640a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/avogadro2
 * [new ref]         41a12536d5ffd50dfb2271a77d33b68c4615640a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 41a1253 Release 1.99.0