On Sat, Sep 29, 2018 at 5:31 PM Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx> wrote: > > #1 refs_resolve_ref_unsafe (refs=0x0, > > refname=refname@entry=0x55e863062253 "HEAD", > > resolve_flags=resolve_flags@entry=1, oid=oid@entry=0x7ffdc834b1c0, > > flags=flags@entry=0x7ffdc834b1bc) at refs.c:1493 refs is NULL. It looks like somebody fails to get the right submodule ref store (or tries to get it but fails to check if it may return NULL) -- Duy