$ git clone -n https://src.fedoraproject.org/rpms/perl-BSON.git /var/lib/mock/f41-build-1639658-24158/root/chroot_tmpdir/scmroot/perl-BSON
Cloning into '/var/lib/mock/f41-build-1639658-24158/root/chroot_tmpdir/scmroot/perl-BSON'...
$ git fetch origin 7bfb4b984a61587735946cdcf8ad450e1b8302d3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-BSON
 * [new ref]         7bfb4b984a61587735946cdcf8ad450e1b8302d3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7bfb4b9 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild