$ git clone -n https://src.fedoraproject.org/rpms/R-rtracklayer.git /var/lib/mock/f42-build-3267371-41262/root/chroot_tmpdir/scmroot/R-rtracklayer
Cloning into '/var/lib/mock/f42-build-3267371-41262/root/chroot_tmpdir/scmroot/R-rtracklayer'...
$ git fetch origin 34b0e01c20a0331238776e1846b52389e73032f7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-rtracklayer
 * [new ref]         34b0e01c20a0331238776e1846b52389e73032f7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 34b0e01 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild