Fix quadratic behavior in QQuickRepeater::clear(), take 2

This amends 52874a0e6f739ce410c8401e19b0a9ef6d02cabf, to also
fix the quadratic behavior when removing the repeaters item
from their parent.

Change-Id: I24ad7ca4f66a765a5e991846d65803ccf84c2cab
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

1 files changed, 4 insertions, 1 deletions

diff --git a/src/quick/items/qquickrepeater.cpp b/src/quick/items/qquickrepeater.cpp
index 658a7de3d4..ba9460bf76 100644
--- a/src/quick/items/qquickrepeater.cpp
+++ b/src/quick/items/qquickrepeater.cpp
@@ -374,9 +374,12 @@ void QQuickRepeater::clear()
                 if (complete)
                     emit itemRemoved(i, item);
                 d->model->release(item);
-                item->setParentItem(0);
             }
         }
+        for (QQuickItem *item : qAsConst(d->deletables)) {
+            if (item)
+                item->setParentItem(0);
+        }
     }
     d->deletables.clear();
     d->itemCount = 0;