$ git clone -n https://src.fedoraproject.org/rpms/perl-MongoDB.git /var/lib/mock/f42-build-3181713-40950/root/chroot_tmpdir/scmroot/perl-MongoDB
Cloning into '/var/lib/mock/f42-build-3181713-40950/root/chroot_tmpdir/scmroot/perl-MongoDB'...
$ git fetch origin da2bd490c44436f2bcee0e88f7642e3674120d2f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-MongoDB
 * [new ref]         da2bd490c44436f2bcee0e88f7642e3674120d2f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at da2bd49 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild