navigation@<number> causes ERR Cannot read property 'title' of undefined

[tamuratak]

Version: 1.41.0-insider
Commit: 615732f
Date: 2019-11-27T05:36:11.009Z
Electron: 6.1.5
Chrome: 76.0.3809.146
Node.js: 12.4.0
V8: 7.6.303.31-electron.0
OS: Darwin x64 18.7.0

Reproducing #85576.

Steps to Reproduce:

1. Add the following to package.json in hello-world-sample. This doc is on @<number>

diff --git a/helloworld-sample/package.json b/helloworld-sample/package.json
index 3c5d17f..0552c87 100644
--- a/helloworld-sample/package.json
+++ b/helloworld-sample/package.json
@@ -21,7 +21,16 @@
                                "command": "extension.helloWorld",
                                "title": "Hello World"
                        }
-               ]
+               ],
+               "menus": {
+                       "editor/context": [
+                         {
+                               "command": "extension.helloWorld",
+                               "group": "navigation@100"
+                         }
+                       ]
+               }
+
        },
        "scripts": {
                "vscode:prepublish": "npm run compile",

2. Execute the sample.
3. Open a new file and right-click.

  ERR Cannot read property 'title' of undefined: TypeError: Cannot read property 'title' of undefined
    at _compareMenuItems (file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:1707:336)
    at Array.sort (<anonymous>)
    at e._build (file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:1706:144)
    at new e (file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:1705:658)
    at createMenu (file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:1705:361)
    at e._getMenuActions (file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:1813:213)
    at e.showContextMenu (file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:1813:77)
    at e._onContextMenu (file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:1812:915)
    at file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:1811:927
    at c.fire (file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:114:740)
    at s.n.onContextMenu (file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:2141:461)
    at s.emitContextMenu (file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:2021:595)
    at t.ViewController.emitContextMenu (file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:1785:869)
    at g._onContextMenu (file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:2006:1006)
    at file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:2005:257
    at HTMLDivElement.<anonymous> (file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:554:273)

Does this issue occur when all extensions are disabled?: Yes

[vscodebot]

(Experimental duplicate detection)
Thanks for submitting this issue. Please also check if it is already covered by an existing one, like:

• SCM Views: Error: AbstractContextKeyService has been disposed (#81727)
• SCM Views: Cannot read property 'templateData' of null (#81726)
• Tree view is empty (#79371)
• TypeScript Server Error - Cannot auto import get code fixes (#75727)
• Error when expanding/collapsing in the Problems view (icon changes, but contents to not collapse) (#83211)

[jrieken]

Thanks for the logs and repo steps 👏