Calling Dump with a title, and then dump without, adds more stuff to the titled region

This example:

10.Dump();
20.Dump();

produces this output:

10
20

However, this example:

10.Dump("Title");
20.Dump();

produces this:

| Title
| 1020

I feel like the expected output should be something like this:

| Title
| 10
20

Tested in NetPad 0.6.0 on Windows.