fix: Bug showing split for flex while in different mode on same band

internal/award/award_test.go

@@ -165,6 +165,49 @@ func TestComputeOrRuleFallback(t *testing.T) {
 	}
 }
 
+// The user's WAPC cascade: (1) province NAME in QTH, else (2) province NAME in
+// ADDRESS, else (3) match-by-pattern in QTH, which runs each reference's OWN
+// regex (city lists). Confirms the ordered fallback + that a match-by-pattern
+// rule with an empty rule-pattern triggers the per-reference regexes.
+func TestComputeProvinceCascade(t *testing.T) {
+	def := Def{Code: "WAPC", Type: TypeQSOFields, Field: "qth", MatchBy: "description",
+		DXCCFilter: []int{318}, Valid: true,
+		OrRules: []OrRule{
+			{Field: "address", MatchBy: "description"},
+			{Field: "qth", MatchBy: "pattern"}, // empty pattern → per-reference regexes
+		},
+	}
+	refMetas := map[string][]RefMeta{"WAPC": {
+		{Code: "JS", Name: "Jiangsu", Pattern: `\bJiangyin\b`, Valid: true},
+		{Code: "ZJ", Name: "Zhejiang", Pattern: `\bHangzhou\b`, Valid: true},
+	}}
+	worked := func(q qso.QSO) []string {
+		r := Compute([]Def{def}, []qso.QSO{q}, refMetas, nil)[0]
+		var out []string
+		for _, rf := range r.Refs {
+			if rf.Worked {
+				out = append(out, rf.Ref)
+			}
+		}
+		return out
+	}
+	cases := []struct {
+		name, qth, addr string
+		want            string
+	}{
+		{"name in qth", "Wuxi, Jiangsu", "", "JS"},
+		{"name in address", "Wuxi", "Jiangsu Province", "JS"},
+		{"city regex (Jiangyin) in qth", "Jiangyin", "", "JS"},
+		{"city regex (Hangzhou) in qth", "Hangzhou", "", "ZJ"},
+	}
+	for _, c := range cases {
+		got := worked(qso.QSO{Callsign: "BA1A", DXCC: ip(318), QTH: c.qth, Address: c.addr})
+		if len(got) != 1 || got[0] != c.want {
+			t.Errorf("%s: got %v, want [%s]", c.name, got, c.want)
+		}
+	}
+}
+
 // A manually-assigned override (ManualRefsKey) must count in Compute — not just
 // MatchQSO — so a custom award like WAPC (matches ADDRESS by description, writes
 // no QSO field) sticks after the operator picks the province by hand. The engine