$ git clone -n https://src.fedoraproject.org/rpms/perl-BSON.git /var/lib/mock/f39-build-1800935-41797/root/chroot_tmpdir/scmroot/perl-BSON
Cloning into '/var/lib/mock/f39-build-1800935-41797/root/chroot_tmpdir/scmroot/perl-BSON'...
$ git fetch origin 267aa415e6d14883dd7f4f1c486b10121db3df8d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-BSON
 * [new ref]         267aa415e6d14883dd7f4f1c486b10121db3df8d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 267aa41 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild