How to execute more than one commands in one ShellTerminalWidget?

Hello.

val terminalView = TerminalView.getWidgetByContent(selectedContent) as ShellTerminalWidget
terminalView.executeCommand("some command")

This code work ok.

When I`m trying to call the same code again, exception occurs:

Cannot execute command when another command is typed: D:\_sources\IDEA\tests\Git Helper Test>

But not every time. Sometimes executes but mostly throws exception.

"D:\_sources\IDEA\tests\Git Helper Test>" is not command - this is terminal path

What I`m doing wrong?