$ git clone -n https://src.fedoraproject.org/rpms/python-jstyleson.git /var/lib/mock/f45-build-31235-651/root/chroot_tmpdir/scmroot/python-jstyleson
Cloning into '/var/lib/mock/f45-build-31235-651/root/chroot_tmpdir/scmroot/python-jstyleson'...
$ git fetch origin 25c4e7290e90f28b23cb11f2153e78b176de5355:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-jstyleson
 * [new ref]         25c4e7290e90f28b23cb11f2153e78b176de5355 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 25c4e72 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild