$ git clone -n https://src.fedoraproject.org/rpms/perl-DBD-Firebird.git /var/lib/mock/f39-build-1437487-32140/root/chroot_tmpdir/scmroot/perl-DBD-Firebird
Cloning into '/var/lib/mock/f39-build-1437487-32140/root/chroot_tmpdir/scmroot/perl-DBD-Firebird'...
$ git fetch origin 798b1287cee18f5f1f8a5feacb9dc9b27e83b100:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-DBD-Firebird
 * [new ref]         798b1287cee18f5f1f8a5feacb9dc9b27e83b100 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 798b128 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild