$ git clone -n https://src.fedoraproject.org/rpms/R-lobstr.git /var/lib/mock/f39-build-1600293-38536/root/chroot_tmpdir/scmroot/R-lobstr
Cloning into '/var/lib/mock/f39-build-1600293-38536/root/chroot_tmpdir/scmroot/R-lobstr'...
$ git fetch origin d36a5d1c7d5541a6f3c4ecb2a8aafbe672624a21:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-lobstr
 * [new ref]         d36a5d1c7d5541a6f3c4ecb2a8aafbe672624a21 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d36a5d1 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild