Fix a crash with ScrollView + TextArea

TextArea was not cleaning up its geometry change listener on the
Flickable it was attached to.

Task-number: QTBUG-62292
Change-Id: I31223d4fcf0b46235b18e8eb05bab686a32f5481
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>

1 files changed, 16 insertions, 0 deletions

diff --git a/tests/auto/controls/data/tst_textarea.qml b/tests/auto/controls/data/tst_textarea.qml
index 0b68edc9..7c47aa25 100644
--- a/tests/auto/controls/data/tst_textarea.qml
+++ b/tests/auto/controls/data/tst_textarea.qml
@@ -449,4 +449,20 @@ TestCase {
         mouseClick(control, rect.x + rect.width / 2, rect.y + rect.height / 2)
         compare(control.selectedText, "Qt Quick Controls 2 TextArea")
     }
+
+    Component {
+        id: scrollView
+        ScrollView {
+            TextArea { }
+        }
+    }
+
+    function test_scrollView() {
+        var control = createTemporaryObject(scrollView, testCase)
+        verify(control)
+
+        // don't crash (QTBUG-62292)
+        control.destroy()
+        wait(0)
+    }
 }