changes signature of emitChange to require changedProps

src/domain/RootViewModel.js

@@ -17,7 +17,7 @@ limitations under the License.
 import {Client} from "../matrix/Client.js";
 import {SessionViewModel} from "./session/SessionViewModel.js";
 import {SessionLoadViewModel} from "./SessionLoadViewModel.js";
-import {LoginViewModel} from "./login/LoginViewModel.ts";
+import {LoginViewModel} from "./login/LoginViewModel";
 import {LogoutViewModel} from "./LogoutViewModel";
 import {SessionPickerViewModel} from "./SessionPickerViewModel.js";
 import {ViewModel} from "./ViewModel";

src/domain/ViewModel.ts

@@ -115,7 +115,7 @@ export class ViewModel<O extends Options = Options> extends EventEmitter<{change
         return result;
     }
 
-    emitChange(changedProps?: any): void {
+    emitChange(changedProps: any): void {
         if (this._options.emitChange) {
             this._options.emitChange(changedProps);
         } else {

src/domain/login/LoginViewModel.ts

@@ -208,7 +208,7 @@ export class LoginViewModel extends ViewModel<Options> {
         this._showError("");
         this._disposeViewModels();
         this._abortQueryOperation = this.disposeTracked(this._abortQueryOperation);
-        this.emitChange(); // multiple fields changing
+        this.emitChange("loginViewModels"); // multiple fields changing
         // also clear the timeout if it is still running
         this.disposeTracked(this._abortHomeserverQueryTimeout);
         const timeout = this.clock.createTimeout(1000);