$ git clone -n https://src.fedoraproject.org/rpms/python-markdown-exec.git /var/lib/mock/f45-build-31488-652/root/chroot_tmpdir/scmroot/python-markdown-exec
Cloning into '/var/lib/mock/f45-build-31488-652/root/chroot_tmpdir/scmroot/python-markdown-exec'...
$ git fetch origin 7aba23bfc2eb7b08be4fc5f936212874d8e3f5a4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-markdown-exec
 * [new ref]         7aba23bfc2eb7b08be4fc5f936212874d8e3f5a4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7aba23b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild