Enforce multiline on key-value editor (Fixes #745)

.github/stale.yml

@@ -2,9 +2,10 @@ daysUntilStale: 60
 daysUntilClose: 7
 exemptLabels:
   - High Priority
-  - Needs PR
+  - Accepted
   - Help Wanted
   - Blocked
+  - Bug
 staleLabel: Stale
 markComment: >
   This issue has been automatically marked as stale because it has not had

packages/insomnia-app/app/ui/components/key-value-editor/row.js

@@ -62,6 +62,10 @@ class KeyValueEditorRow extends PureComponent {
   }
 
   _handleValuePaste (e) {
+    if (!this.props.allowMultiline) {
+      return;
+    }
+
     const value = e.clipboardData.getData('text/plain');
     if (value && value.includes('\n')) {
       e.preventDefault();