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Random notifications with "documentColumnIndex cannot be greater than the line's maximum index"

See original GitHub issue

Repro steps: Really hard to tell what causes this specific issue as it seems fairly random.

I think it might happen when autocomplete suggestions are triggered. I use a smaller vscode window where it only takes half of my screen. My only guess is that perhaps there are some situations where the autocompletion menu might not have enough space to render?!

Although this notification happens fairly often, I have not been able to determine the exact steps that will reproduce it 100% of the time.

Action: provideCompletionItems Error type: ERR_ASSERTION Error Message: documentColumnIndex (27) cannot be greater than the line’s maximum index (26)

Version: 0.5.0 OS: Arch linux VS Code Version: 1.32.2

Call Stack

Function.fromDocumentLineAndColumnIndexes (dist/extension.bundle.js:127:96193)
DeploymentTemplate.getContextFromDocumentLineAndColumnIndexes (dist/extension.bundle.js:127:92640)
Object.<anonymous> (dist/extension.bundle.js:127:125835)
Generator.next (<anonymous>)
module.exports.n (dist/extension.bundle.js:127:117380)
new Promise (<anonymous>)
module.exports.n (dist/extension.bundle.js:127:117157)
Object.<anonymous> (dist/extension.bundle.js:127:125744)
Object.<anonymous> (dist/extension.bundle.js:1:182883)
Generator.next (<anonymous>)
module.exports.n (dist/extension.bundle.js:1:181258)
new Promise (<anonymous>)
module.exports.n (dist/extension.bundle.js:1:181035)
Object.module.exports.t.callWithTelemetryAndErrorHandling (dist/extension.bundle.js:1:182800)
AzureRMTools.<anonymous> (dist/extension.bundle.js:127:125667)
Generator.next (<anonymous>)
module.exports.n (dist/extension.bundle.js:127:117380)
new Promise (<anonymous>)
module.exports.n (dist/extension.bundle.js:127:117157)
AzureRMTools.onProvideCompletionItems (dist/extension.bundle.js:127:125562)
Object.provideCompletionItems (dist/extension.bundle.js:127:121876)
define.provideCompletionItems.a.asPromise (extensionHostProcess.js:569:293)
t.asPromise.Promise (extensionHostProcess.js:48:58)
new Promise (<anonymous>)
Object.t.asPromise (extensionHostProcess.js:48:32)
O.provideCompletionItems (extensionHostProcess.js:569:264)
define.$provideCompletionItems._withAdapter.e (extensionHostProcess.js:582:811)
$._withAdapter (extensionHostProcess.js:575:502)
$provideCompletionItems (extensionHostProcess.js:582:789)
h._doInvokeHandler (extensionHostProcess.js:593:118)
h._invokeHandler (extensionHostProcess.js:592:777)
h._receiveRequest (extensionHostProcess.js:591:383)
h._receiveOneMessage (extensionHostProcess.js:590:279)
define.constructor._protocol.onMessage.e (extensionHostProcess.js:588:565)
u.fire (extensionHostProcess.js:43:254)
e (extensionHostProcess.js:39:64)
u.fire (extensionHostProcess.js:43:254)
s (extensionHostProcess.js:168:754)
Socket.define.constructor._socketDataListener.e (extensionHostProcess.js:168:960)
Socket.emit (events.js:182:13)
addChunk (_stream_readable.js:279:12)
readableAddChunk (_stream_readable.js:264:11)
Socket.Readable.push (_stream_readable.js:219:10)
Pipe.onread (net.js:636:20)