Variables don't refresh when clicking the toolbar button on the interactive window

[rchiodo]

Seems like a recent regression

1. Open notebook

2. Create variable

3. View it in the variables window

4. Open terminal

5. Open python file with cell

6. Run cell that would create a new variable

7. Click on variables

8. No variables shown

9. Give focus to IW input box

10. Variables start working again

[IanMatthewHuff]

Side note, need to click off of the variables window between steps 3 and 4. If the variables window is still up and visible I don't repro the issue, but I do repro if you click to something like output or terminal after step 3.

Another small note. When running the .py, don't reveal the variables until the execution has finished. Otherwise the execution finishing will update the vars and the bug won't repro.

[IanMatthewHuff]

Kinda think this is more a variable view issue versus IW, so assigning myself.

[amunger]

not reproducing for me with latest