$ git clone -n https://src.fedoraproject.org/rpms/R-bslib.git /var/lib/mock/f40-build-2031924-47654/root/chroot_tmpdir/scmroot/R-bslib
Cloning into '/var/lib/mock/f40-build-2031924-47654/root/chroot_tmpdir/scmroot/R-bslib'...
$ git fetch origin 713660b50e1798188994e8eb1c3dff681246f1de:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-bslib
 * [new ref]         713660b50e1798188994e8eb1c3dff681246f1de -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 713660b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild