Clicking Available tab immediately after launching Extension Manager causes console error

[lkcampbell]

OS: Mac OSX Mavericks

Brackets Version: sprint 37 development build 0.37.0-0 (master 715589c)

Repro Steps:

1. Launch the Extension Manager
2. Click the Available tab quickly right after the dialog box appears. Easier to reproduce if the connection to the Extension Registry is slow. The spinner icon should still be showing when you click on the tab.

Expected Results:
The Extensions Manager should list all Available extensions. If not immediately, then after the list finishes loading.

Observed Results:
The Extension Manager displays an empty page. There is an error in the Dev Tools console.log: Uncaught TypeError: Cannot set property 'scrollPos' of undefined ExtensionManagerDialog.js:210

Workaround:
Don't click on the tab right away and the list loads up eventually. Click on Installed tab then back on Available tab and the list loads up.

[marcelgerber]

Already filed as #5852

[lkcampbell]

I could have sworn I did a good search for this issue. Oh well, thanks for the info @SAplayer. Closing as duplicate.