$ git clone -n https://src.fedoraproject.org/rpms/R-timechange /var/lib/mock/f41-build-side-1-3149130-40244/root/chroot_tmpdir/scmroot/R-timechange
Cloning into '/var/lib/mock/f41-build-side-1-3149130-40244/root/chroot_tmpdir/scmroot/R-timechange'...
$ git fetch origin e9c707fd738aaf0c5cdc8e8435d7d4861c5aee7f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-timechange
 * [new ref]         e9c707fd738aaf0c5cdc8e8435d7d4861c5aee7f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e9c707f Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild