when a nullable parameter is reassigned with an unknown value, don't still consider it nullable (IDEA-54770)

java/java-tests/testData/inspection/dataFlow/fixture/AssigningUnknownToNullable.java

@@ -0,0 +1,12 @@
+import org.jetbrains.annotations.Nullable;
+
+public class BrokenAlignment {
+
+  String unknown(String s) { return s; }
+
+  public void example(@Nullable String value) {
+    value = unknown(<warning descr="Argument 'value' might be null but passed to non annotated parameter">value</warning>);
+    if (value.contains("%")) {
+    }
+  }
+}