$ git clone -n https://src.fedoraproject.org/rpms/vorta.git /var/lib/mock/f39-build-1865105-42544/root/chroot_tmpdir/scmroot/vorta
Cloning into '/var/lib/mock/f39-build-1865105-42544/root/chroot_tmpdir/scmroot/vorta'...
$ git fetch origin 89feb0eb3b95a3bb321865c0f90e3f9f76258ebf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vorta
 * [new ref]         89feb0eb3b95a3bb321865c0f90e3f9f76258ebf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 89feb0e Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild