Java pasted source can't use REPL artifacts

[som-snytt]

Reproduction steps

Scala version: 2.13.15

scala> :pa -java
// Entering paste mode (ctrl-D to finish)

package p;
public class X {
}

// Exiting paste mode... now compiling with javac.

scala> class Y extends p.X
class Y

scala> :pa
// Entering paste mode (ctrl-D to finish)

package p
class Z extends X

// Exiting paste mode... now compiling with scalac.

but I can't test Java interop from the Java side.

scala> :pa -java
// Entering paste mode (ctrl-D to finish)

package p;
public class W extends Z {
}

// Exiting paste mode... now compiling with javac.
Compilation failed! cannot find symbol
  symbol: class Z

Problem

Testing interop is the point of the feature.