fix(py): reset Python flags on data edges #922

Job	Run time
gazelle	31s
buildifier	21s
test (e2e/cases, bazel-9)	57s
test (examples/debugger, bazel-9)	58s
test (examples/dev_deps, bazel-8)	33s
test (., bazel-8)	2m 49s
test (., bazel-9)	3m 42s
test (e2e/interpreter-runtime-metadata, bazel-9)	1m 7s
test (e2e/interpreter-input-validation, bazel-8)	50s
test (e2e/cases, bazel-8)	4m 9s
test (e2e/interpreter-toolchain-settings, bazel-9)	1m 10s
test (e2e/interpreter-runtime-metadata, bazel-8)	34s
test (e2e/interpreter-toolchain-settings, bazel-8)	37s
test (examples/debugger, bazel-8)	40s
test (e2e/rules-proto-grpc-python, bazel-8)	1m 30s
test (e2e/interpreter-input-validation, bazel-9)	1m 15s
test (examples/django, bazel-9)	55s
test (e2e/rules-proto-grpc-python, bazel-9)	1m 15s
test (examples/py_binary, bazel-9)	1m 3s
test (examples/dev_deps, bazel-9)	1m 0s
test (examples/django, bazel-8)	26s
test (examples/protobuf, bazel-8)	1m 12s
test (examples/py_venv, bazel-9)	1m 1s
test (examples/multi_version, bazel-8)	46s
test (examples/uv_pip_compile, bazel-9)	52s
test (examples/py_binary, bazel-8)	37s
test (examples/multi_version, bazel-9)	1m 2s
test (examples/pytest, bazel-8)	54s
test (examples/py_pex_binary, bazel-9)	1m 24s
test (examples/uv_pip_compile, bazel-8)	27s
test (examples/virtual_deps, bazel-8)	41s
test (examples/py_venv, bazel-8)	28s
test (examples/protobuf, bazel-9)	1m 39s
test (examples/pytest, bazel-9)	1m 28s
test (examples/py_pex_binary, bazel-8)	25s
test (examples/virtual_deps, bazel-9)	53s
test-all	4s
	40m 15s

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