$ git clone -n https://src.fedoraproject.org/rpms/imv.git /var/lib/mock/f40-build-780047-130662/root/chroot_tmpdir/scmroot/imv
Cloning into '/var/lib/mock/f40-build-780047-130662/root/chroot_tmpdir/scmroot/imv'...
$ git fetch origin a4d08bc167e8acb30ee483f0014c300b49f90bcb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/imv
 * [new ref]         a4d08bc167e8acb30ee483f0014c300b49f90bcb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a4d08bc Update to 4.5.0 (#2265221)