$ git clone -n https://src.fedoraproject.org/rpms/R-mnormt /var/lib/mock/f39-build-1586230-38186/root/chroot_tmpdir/scmroot/R-mnormt
Cloning into '/var/lib/mock/f39-build-1586230-38186/root/chroot_tmpdir/scmroot/R-mnormt'...
$ git fetch origin 7606820bdf8876473accbfc24bdda0f5473ad186:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-mnormt
 * [new ref]         7606820bdf8876473accbfc24bdda0f5473ad186 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7606820 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild