$ git clone -n https://src.fedoraproject.org/rpms/python-fontrpmspec.git /var/lib/mock/f45-build-30770-647/root/chroot_tmpdir/scmroot/python-fontrpmspec
Cloning into '/var/lib/mock/f45-build-30770-647/root/chroot_tmpdir/scmroot/python-fontrpmspec'...
$ git fetch origin 3b4ef71c92a529689e3c43fb0c62b152c88238be:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-fontrpmspec
 * [new ref]         3b4ef71c92a529689e3c43fb0c62b152c88238be -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3b4ef71 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild