$ git clone -n https://src.fedoraproject.org/rpms/R-tkrplot.git /var/lib/mock/f40-build-789235-135688/root/chroot_tmpdir/scmroot/R-tkrplot
Cloning into '/var/lib/mock/f40-build-789235-135688/root/chroot_tmpdir/scmroot/R-tkrplot'...
$ git fetch origin 3cc283ad655f23036c60a9b6f97f407abdbc0aa3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-tkrplot
 * [new ref]         3cc283ad655f23036c60a9b6f97f407abdbc0aa3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3cc283a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild