carloea2 opened a new issue, #8270:
URL: https://github.com/apache/texera/issues/8270
### What happened?
Constructing a `Tuple` from another `Tuple` reuses the same internal ordered
dictionary. Assigning a field on either tuple therefore changes the other tuple
as well. An operator that creates and edits a derived tuple can silently mutate
its input row.
Before: copied tuples share field storage and leak assignments in both
directions.
Expected: a tuple copy starts with the same fields but has independent field
mapping storage.
### How to reproduce?
1. Create `original = Tuple({"x": 1})`.
2. Create `copied = Tuple(original)`.
3. Assign `copied["x"] = 2` and observe that `original["x"]` also becomes 2.
### Version or branch
1.3.0-incubating-SNAPSHOT on main
### Commit hash
50321e403c82df299a13deb50a7f9849dd93bdba
### Relevant log output
original_x=2 derived_x=2 same_storage=True
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