$ git clone -n https://src.fedoraproject.org/rpms/python-extruct.git /var/lib/mock/f45-build-30603-646/root/chroot_tmpdir/scmroot/python-extruct
Cloning into '/var/lib/mock/f45-build-30603-646/root/chroot_tmpdir/scmroot/python-extruct'...
$ git fetch origin 3e391bdbf169861d013046409d4d3c3c6cc8c505:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-extruct
 * [new ref]         3e391bdbf169861d013046409d4d3c3c6cc8c505 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3e391bd Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild