fix(synthetic-shadow): dont add key for slotted text vnode #1946
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Details
When vnodes are allocated in slots (synthetic-shadow only), the process rewrites the vnode key, in the case of text vnodes (they don't have key), it will make 2 different text vnodes in the same slot, to have the same key.
Later on in this section diffing algo, createKeyToOldIdx will map incorrectly those 2 nodes, causing the algo to patch the incorrect vnode, which eventually triggers an error.
This PR fixes the issue by not adding the slot key for text nodes.
Does this PR introduce breaking changes?
No, it does not introduce breaking changes.
GUS item
W-7292159