$ git clone -n https://src.fedoraproject.org/rpms/TurboGears2.git /var/lib/mock/f39-build-1565605-37580/root/chroot_tmpdir/scmroot/TurboGears2
Cloning into '/var/lib/mock/f39-build-1565605-37580/root/chroot_tmpdir/scmroot/TurboGears2'...
$ git fetch origin 04e5843c2589893b739b361085bbb38d109cb3d4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/TurboGears2
 * [new ref]         04e5843c2589893b739b361085bbb38d109cb3d4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 04e5843 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild