qml.specs reports depth=None for circuits with custom multi-layer operations

qml.specs reports depth=None for circuits with custom multi-layer operations: a task in MiMo-V2.6-RL-harbor-code: MiMo-V2.6-RL Code (Harbor) (Harbor dataset). I've been defining my own operations by subclassing ResourcesOperation so I can plug them into PennyLane circuits while still being able to…