don't preselect the last chosen completion item when the matching prefix is unrelated to the prefix entered when that item was chosen (IDEA-92823)

java/java-tests/testData/codeInsight/completion/normalSorting/DontPreselectLastChosenWithUnrelatedPrefix.java

@@ -0,0 +1,8 @@
+
+public class Foo {
+  Object myExtendsClause = null;
+  Object myClass = null;
+  void foo() {
+    myexc<caret>
+  }
+}