Autocomplete doesn't select the value

[Demian87]

Autocomplete doesn't select the value, hangs open after click on the selected value.
Getting the following error:
ТypeError: Cannot read property 'toLowerCase' of undefined
at handleQuery (VM4649 angular-material.js:17674)
at VM4649 angular-material.js:17321
at processQueue (angular.js:14745)
at angular.js:14761
at Scope.$eval (angular.js:15989)
at Scope.$digest (angular.js:15800)
at angular.js:16028
at completeOutstandingRequest (angular.js:5507)
at angular.js:5784(anonymous function) @ angular.js:12477(anonymous function) @ angular.js:9246processQueue @ angular.js:14753(anonymous function) @ angular.js:14761Scope.$eval @ angular.js:15989Scope.$digest @ angular.js:15800(anonymous function) @ angular.js:16028completeOutstandingRequest @ angular.js:5507(anonymous function) @ angular.js:5784

Also getting this error when clearing already filled control

[topherfangio]

Related: #5162 and #5344.