Regression: Can't override java defined method which have variable with same name

[ohze]

Minimized code

class C extends java.util.LinkedList[String] {
  override def size(): Int = super.size()
}

Output

Compile error in 0.25.0-RC2 and 0.26.0-bin-20200719-21a90aa-NIGHTLY:

[error] -- Error: /Users/thanhbv/tmp/ex/src/main/scala/C.scala:2:15 --------------------
[error] 2 |  override def size(): Int = super.size()
[error]   |               ^
[error]   |error overriding variable size in class LinkedList of type Int;
[error]   |  method size of type (): Int cannot override final member variable size in class LinkedList

Expectation

Compile successfully as in dotty 0.24.0 & in scala 2

[ohze]

Note: Here is java.util.LinkedList

public class LinkedList<E> ...
  transient int size = 0;
  public int size() { return size; }
  ...

[ohze]

This issue is caused by commit 945b31e0

def isEffectivelyFinal = .. || is(JavaDefinedVal, butNot = Method)

In RefChecks.checkOverride

val opc = new OverridingPairs.Cursor(clazz)
while opc.hasNext do
  checkOverride(opc.overriding, opc.overridden)
  opc.next()

opc contains both pairs (C.size(), LinkedList.size /*variable*/) and (C.size(), LinkedList.size() /*method*/)
=> error at the /*variable*/ pair because in checkOverride:

else if (other.isEffectivelyFinal) // (1.2)
  overrideError(i"cannot override final member ${other.showLocated}")