$ git clone -n https://src.fedoraproject.org/rpms/R-S4Vectors.git /var/lib/mock/f41-build-side-1-3141220-39987/root/chroot_tmpdir/scmroot/R-S4Vectors
Cloning into '/var/lib/mock/f41-build-side-1-3141220-39987/root/chroot_tmpdir/scmroot/R-S4Vectors'...
$ git fetch origin 5e489b4d1715ec68f3d166e84f8b4af18139b7bb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-S4Vectors
 * [new ref]         5e489b4d1715ec68f3d166e84f8b4af18139b7bb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5e489b4 Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild