$ git clone -n https://src.fedoraproject.org/rpms/R-rtracklayer /var/lib/mock/f39-build-1583579-38127/root/chroot_tmpdir/scmroot/R-rtracklayer
Cloning into '/var/lib/mock/f39-build-1583579-38127/root/chroot_tmpdir/scmroot/R-rtracklayer'...
$ git fetch origin 032012c998acacebac45308a216e3fb2b24375a2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-rtracklayer
 * [new ref]         032012c998acacebac45308a216e3fb2b24375a2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 032012c Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild