This fixes a bug discovered by Haoran and Callum - if you ask for two different typed collections one after the other, the type propagation system gets very confused because I was accidentally modifying a Python runtime type. This fixes that.
What's Changed
* Do not alter runtime types by gordonwatts in https://github.com/iris-hep/func_adl/pull/120
**Full Changelog**: https://github.com/iris-hep/func_adl/compare/3.2.3...3.2.4