initialise is_found in src/spin.c
@@ -164,6 +164,8 @@ static Symmetry * get_operations(int *spin_flips,
trans = mat_alloc_VecDBL(sym_nonspin->size);
num_sym = 0;
+ is_found = 0;
+
for (i = 0; i < sym_nonspin->size; i++) {
/* Set sign as undetermined (used for collinear spin case (rank = 0) */
sign = 0;
