Replace with Scope set to Selection

We are seeing a problem with the EditorSearchView when using the Replace button with scope set to selection.  If the Syntax Editor has the following text:

This is a test
<strong>This is a test</strong>
<strong>This is a test</strong>
<strong>This is a test</strong>
This is a test

and we use the EditorSearchView to find and replace the word "test" with "done" while having lines 2, 3 aned 4 selected and setting the scope to "Selection" using the "Replace" button, it replaces the ones on line 2 and 3 fine, but fails to move on and find the one on line 4.

Interestingly, it works when using "Replace All" with the selection scope still set.  its just the "Replace" button that seems to stop after two successful replacements.