find_shared_symref  396 branch.c       	existing = find_shared_symref("HEAD", branch);
find_shared_symref   68 branch.h       extern char *find_shared_symref(const char *symref, const char *target);
find_shared_symref  851 builtin/notes.c 		existing = find_shared_symref("NOTES_MERGE_REF", default_notes_ref());