$ git clone -n https://src.fedoraproject.org/rpms/python-rfc3987-syntax.git /var/lib/mock/f45-build-32777-662/root/chroot_tmpdir/scmroot/python-rfc3987-syntax
Cloning into '/var/lib/mock/f45-build-32777-662/root/chroot_tmpdir/scmroot/python-rfc3987-syntax'...
$ git fetch origin a048d8cb21d6b00863b7a34284fc526318e1c810:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-rfc3987-syntax
 * [new ref]         a048d8cb21d6b00863b7a34284fc526318e1c810 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a048d8c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild