$ git clone -n https://src.fedoraproject.org/rpms/python-tbtrim.git /var/lib/mock/f39-build-1426391-31596/root/chroot_tmpdir/scmroot/python-tbtrim
Cloning into '/var/lib/mock/f39-build-1426391-31596/root/chroot_tmpdir/scmroot/python-tbtrim'...
$ git fetch origin 83dc0c03e82dd4a08d49d9e0236cf0842b4082a9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-tbtrim
 * [new ref]         83dc0c03e82dd4a08d49d9e0236cf0842b4082a9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 83dc0c0 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild