$ git clone -n https://src.fedoraproject.org/rpms/R-bindrcpp.git /var/lib/mock/f40-build-2339709-59671/root/chroot_tmpdir/scmroot/R-bindrcpp
Cloning into '/var/lib/mock/f40-build-2339709-59671/root/chroot_tmpdir/scmroot/R-bindrcpp'...
$ git fetch origin 925a844d8e0491bf1aad10094c09f6041c942167:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-bindrcpp
 * [new ref]         925a844d8e0491bf1aad10094c09f6041c942167 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 925a844 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild