$ git clone -n https://src.fedoraproject.org/rpms/R-sfsmisc /var/lib/mock/f39-build-1586812-38211/root/chroot_tmpdir/scmroot/R-sfsmisc
Cloning into '/var/lib/mock/f39-build-1586812-38211/root/chroot_tmpdir/scmroot/R-sfsmisc'...
$ git fetch origin 7a5c52eb61522bd947ee4dcf206e34881f8391bc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-sfsmisc
 * [new ref]         7a5c52eb61522bd947ee4dcf206e34881f8391bc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7a5c52e Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild