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Check if cregbundle is None to avoid warning statement #15956

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Check if cregbundle is None to avoid warning statement #15956

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08a6055
adds check for cregbundle being None
amruthpremjith Apr 7, 2026
65d1236
adds test case and bugfix release note
amruthpremjith Apr 7, 2026
f047936
Merge branch 'main' into cregbundle-warn
amruthpremjith Apr 7, 2026
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2 changes: 2 additions & 0 deletions qiskit/visualization/circuit/circuit_visualization.py
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Original file line number Diff line number Diff line change
Expand Up @@ -301,6 +301,8 @@ def check_clbit_in_inst(circuit, cregbundle):
if check_clbit_in_inst(block, cregbundle) is False:
return False
elif inst.clbits and not isinstance(inst.operation, Measure):
if cregbundle is None:
return False
if cregbundle is not False:
warn(
"Cregbundle set to False since an instruction needs to refer"
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