test: the bulk-edit guard learns the integer My-station fields

my_dxcc/my_cq_zone/my_itu_zone go through BulkSetIntField, not the string
column map — the guard flagged them as unwritable ever since they were
added, which is the drift it exists to catch, one package over.

bulk_fields_test.go

@@ -33,6 +33,12 @@ func TestBulkEditFieldsAreWritable(t *testing.T) {
 		id := m[1]
 		// Handled before the column map: freq takes a numeric path (freq_hz +
 		// band together) and the extras live in extras_json.
+		// The integer My-station fields take their own numeric path
+		// (BulkSetIntField + bulkEditableIntCols in the repo), added after this
+		// guard was written — which is exactly the drift it exists to catch.
+		if id == "my_dxcc" || id == "my_cq_zone" || id == "my_itu_zone" {
+			continue
+		}
 		if id == "freq" || qso.IsBulkEditableExtra(id) {
 			continue
 		}