When py5 auto-completion is active, other imported modules won't auto-complete/list methods

[tabreturn]

Steps to repeat:

1. Install a package, say cowsay
2. Activate py5 > Imported mode for py5
3. Try something like:

   import cowsay
   cowsay.  # now press ctrl+space, but there are no methods listed
   

But, if one deactivates py5 > Imported mode for py5, the auto-completion works fine for cowsay.

Note: this seems to work fine with standard modules, such as time. It also looks like maybe everything in plug-ins works fine? (things that installed with the plug-in, like tkcolorpicker; pymunk installed as a plug-in after Imported mode for py5 re-activated)

Note: this is a Thonny 4 issue.