Description of the Issue

If a macro is run that causes the first output to the "Find result" window in a Notepad++ run, then right-clicking in the "Find result" window and choosing "Find in these found results" results in nothing further happening with that.

Steps to Reproduce the Issue

1. Record and save a macro that causes data to be written to the "Find result" window (the simplest being a "Find All in Current Document" search).
2. Restart Notepad++
3. Play the previously saved macro.
4. Right-click in the "Find result" window and choose "Find in these found results..." from the popup menu.

Expected Behavior

After step 4 is executed, I expect to see this dialog box appear:

Actual Behavior

Nothing happens (no dialog opens) after step 4.

Debug Information

Notepad++ v7.8.6 (32-bit)
Build time : Apr 21 2020 - 15:17:06
Path : C:.........\npp.7.8.6.bin\notepad++.exe
Admin mode : OFF
Local Conf mode : ON
OS Name : Windows 10 Enterprise (64-bit)
OS Version : 1809
OS Build : 17763.1039
Plugins : mimeTools.dll NppConverter.dll NppExport.dll