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-rw-r--r--layout/base/nsCSSFrameConstructor.cpp7
1 files changed, 4 insertions, 3 deletions
diff --git a/layout/base/nsCSSFrameConstructor.cpp b/layout/base/nsCSSFrameConstructor.cpp
index f69ffe603..c7312dafb 100644
--- a/layout/base/nsCSSFrameConstructor.cpp
+++ b/layout/base/nsCSSFrameConstructor.cpp
@@ -6781,10 +6781,11 @@ nsCSSFrameConstructor::GetInsertionPrevSibling(InsertionPoint* aInsertion,
*aIsAppend = true;
if (IsFramePartOfIBSplit(aInsertion->mParentFrame)) {
// Since we're appending, we'll walk to the last anonymous frame
- // that was created for the broken inline frame. But don't walk
- // to the trailing inline if it's empty; stop at the block.
+ // that was created for the broken inline frame. We can walk to the
+ // trailing inline, since we know this is a real append, and not an
+ // insert (that would've been handled by `FindNextSibling`).
aInsertion->mParentFrame =
- GetLastIBSplitSibling(aInsertion->mParentFrame, false);
+ GetLastIBSplitSibling(aInsertion->mParentFrame, true);
}
// Get continuation that parents the last child.
aInsertion->mParentFrame =