<selectclass="gf-form-input gf-size-auto"ng-model="currentAnnotation.datasource"ng-options="f.name as f.name for f in datasources"ng-change="datasourceChanged()"></select>
<selectclass="gf-form-input gf-size-auto"ng-model="ctrl.currentAnnotation.datasource"ng-options="f.name as f.name for f in ctrl.datasources"ng-change="ctrl.datasourceChanged()"></select>