fix(firestore): correct cursor flipping in limit_to_last #28137
Merged
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Ensure that cursors are correctly flipped when using limit_to_last in Firestore queries. This change moves the assignment of new_start_at and new_end_at outside of the conditional blocks to ensure they are always set correctly. Added tests to cover scenarios with order, start_at, and end_at in combination with limit_to_last.
closes: #27527