Search for users on paste (#11304)

Signed-off-by: Peter Scheu <peter.scheu@aceart.de>

src/components/views/dialogs/InviteDialog.tsx

@@ -870,11 +870,17 @@ export default class InviteDialog extends React.PureComponent<Props, IInviteDial
             return;
         }
 
+        const text = e.clipboardData.getData("text");
+        const potentialAddresses = this.parseFilter(text);
+        // one search term which is not a mxid or email address
+        if (potentialAddresses.length === 1 && !potentialAddresses[0].includes("@")) {
+            return;
+        }
+
         // Prevent the text being pasted into the input
         e.preventDefault();
 
         // Process it as a list of addresses to add instead
-        const text = e.clipboardData.getData("text");
         const possibleMembers = [
             // If we can avoid hitting the profile endpoint, we should.
             ...this.state.recents,
@@ -889,8 +895,6 @@ export default class InviteDialog extends React.PureComponent<Props, IInviteDial
         // Will be displayed as filter text to provide feedback.
         const unableToAddMore: string[] = [];
 
-        const potentialAddresses = this.parseFilter(text);
-
         for (const address of potentialAddresses) {
             const member = possibleMembers.find((m) => m.userId === address);
             if (member) {