PLT-2020 Fix Clicking save without changing your email shows an error message (#3008)

webapp/components/user_settings/user_settings_general.jsx

@@ -160,6 +160,11 @@ class UserSettingsGeneralTab extends React.Component {
         const email = this.state.email.trim().toLowerCase();
         const confirmEmail = this.state.confirmEmail.trim().toLowerCase();
 
+        if (user.email === email) {
+            this.updateSection('');
+            return;
+        }
+
         const {formatMessage} = this.props.intl;
         if (email === '' || !Utils.isEmail(email)) {
             this.setState({emailError: formatMessage(holders.validEmail), clientError: '', serverError: ''});
@@ -171,11 +176,6 @@ class UserSettingsGeneralTab extends React.Component {
             return;
         }
 
-        if (user.email === email) {
-            this.updateSection('');
-            return;
-        }
-
         user.email = email;
         this.submitUser(user, true);
     }