Command Line broken again?

Command Line 5.1 seems to have picked up an old bug again, at least here:

Symptom: The command window is not cleared from a typed in command upon hitting return, when launching self-defined search engines.

Reproduction steps: Type in a command (for example: one that launches a browser to a specific page) and hit return. The command will launch successfully but the command window will not be cleared.

Repeatable: Every time.

Note: When launching folders, executables et.c the command window is cleared as expected.

System:

Windows 7 x64 SP1
TLB 5.3. 64 bit
Command Line v5.1.

Please can you send me the file "Command Line.tlbplugin" (name can be other). To get this file, drag the command line and drop it on the desktop or any other folder. Hold down CTRL key to make a copy of the file.

I'll test the Command Line with your configuration.