[BUG] qml.equal does not understand nesting in sums

[Qottmann]

Expected behavior

X, Y, Z, I = qml.PauliX, qml.PauliY, qml.PauliZ, qml.Identity
qml.operation.enable_new_opmath()
op1 = (
    0.5 * X(0)
  + 0.5 * X(1)
  + 0.5 * X(2)
  + 0.5 * X(3)
  + 0.5 * X(4)
  + 0.5 * X(5)
  + 0.5 * X(6)
  + 0.5 * X(7)
  + 0.5 * X(8)
  + 0.5 * X(9)
)
op2 = qml.sum(*[0.5 * X(i) for i in range(10)])
>>> qml.equal(op1, op2)
True

Actual behavior

op1 = (
    0.5 * X(0)
  + 0.5 * X(1)
  + 0.5 * X(2)
  + 0.5 * X(3)
  + 0.5 * X(4)
  + 0.5 * X(5)
  + 0.5 * X(6)
  + 0.5 * X(7)
  + 0.5 * X(8)
  + 0.5 * X(9)
)
op2 = qml.sum(*[0.5 * X(i) for i in range(10)])
>>> qml.equal(op1, op2)
False

Additional information

qml.equal seems to not understand nesting in Sum.

Source code

No response

Tracebacks

No response

System information

latest main branch

Existing GitHub issues

• I have searched existing GitHub issues to make sure the issue does not already exist.

[sc-56466]