Originally part of #2637

Small description
Asynchronous Issues with addcol-shell Command in Macros

Data to reproduce

Steps to reproduce

Try running an addcol-shell command as part of a macro

Expected result
The column would get added, the column would be populated, the next command in the macro would be run.

Actual result with screenshot

[If there is an error message, please include the full stack trace shown with Ctrl+E or vd --debug.]

Configuration

• Does this issue reproduce without any plugins or configuration (using the -N CLI flag)?

• Does this issue reproduce with either the latest release, or with the develop branch?

Additional context

• What platform and version are you using (Linux, MacOS, Windows)?

• Which version of Python?

• Which terminal are you using (for display and input issues)?