Outgoing Webhook fails due to dotted field names in response

[polygox]

Rocket.Chat Version: 0.55.1
Running Instances: 1
DB Replicaset OpLog: Disabled
Node Version: v4.8.1

We use an outgoing Webhook for fetching work item details from Microsoft Team Foundation Server. It reacts on WI and uses the REST API of TFS.

This integration worked with rocket chat in version 0.36.
When we switched to 0.55.1, the webhook succeeds in requesting the information, but is unable to store the response:

[I20170622-10:44:28.065(0) [Integrations ➔ Outgoing WebHook.info Will be executing the Integration "WI-hook" to the url: http://tfs.intra.mycompany.de:8080/tfs/DefaultCollection/_apis/wit/workitems/ 
[I20170622-10:44:28.071(0) prepare_outgoing_request 
[I20170622-10:44:28.153(0) [Integrations ➔ Outgoing WebHook.info Status code for the Integration WI-hook to http://tfs.intra.mycompany.de:8080/tfs/DefaultCollection/_apis/wit/workitems/ is 200
[I20170622-10:44:28.159(0) Exception in callback of async function: MongoError: The dotted field 'System.AreaPath' in 'httpResult.data.fields.System.AreaPath' is not valid for storage.  
    at Object.Future.wait (/app/bundle/programs/server/node_modules/fibers/future.js:449:15)  
    at [object Object].<anonymous> (packages/meteor.js:213:24)  
    at [object Object].MongoConnection.(anonymous function) [as update] (/app/bundle/programs/server/packages/mongo.js:836:49)  
    at Object.<anonymous> (packages/matb33_collection-hooks.js:504:27)  
    at Object.collection.(anonymous function) [as update] (packages/matb33_collection-hooks.js:146:21)  
    at [object Object].update (/app/bundle/programs/server/packages/mongo.js:3886:31)  
    at ModelsBaseDb.update (/app/bundle/programs/server/packages/rocketchat_lib.js:9648:32)  
    at IntegrationHistory.update (/app/bundle/programs/server/packages/rocketchat_lib.js:4211:36)  
    at RocketChatIntegrationHandler.updateHistory (/app/bundle/programs/server/packages/rocketchat_integrations.js:631:42)  
    at /app/bundle/programs/server/packages/rocketchat_integrations.js:1465:12  
    at runWithEnvironment (packages/meteor.js:1176:24)      - - - - -  
    at Function.MongoError.create (/app/bundle/programs/server/npm/node_modules/meteor/npm-mongo/node_modules/mongodb-core/lib/error.js:31:11)  
    at toError (/app/bundle/programs/server/npm/node_modules/meteor/npm-mongo/node_modules/mongodb/lib/utils.js:114:22)  
    at /app/bundle/programs/server/npm/node_modules/meteor/npm-mongo/node_modules/mongodb/lib/collection.js:1049:67  
    at /app/bundle/programs/server/npm/node_modules/meteor/npm-mongo/node_modules/mongodb-core/lib/connection/pool.js:455:18  
    at nextTickCallbackWith0Args (node.js:489:9)  
    at process._tickDomainCallback (node.js:459:13)

The response contains dotted fields; examples can be found here
But it did work before. What has changed since version 0.36?
Is there a simple workaround for this problem?

Update: Looks like the difference is the web hook history; as the call stack shows, RocketChatIntegrationHandler.updateHistory causes the the problem. the history did not exist in 0.36 AFAIK. Is it possible to deactivate the history feature (for one web hook or all)?