$ git clone -n https://src.fedoraproject.org/rpms/perl-MooX-Struct.git /var/lib/mock/f40-build-2306690-57176/root/chroot_tmpdir/scmroot/perl-MooX-Struct
Cloning into '/var/lib/mock/f40-build-2306690-57176/root/chroot_tmpdir/scmroot/perl-MooX-Struct'...
$ git fetch origin 6390d89204ce49d0b96f15f66682ec8b10dd9ddc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-MooX-Struct
 * [new ref]         6390d89204ce49d0b96f15f66682ec8b10dd9ddc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6390d89 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild