`dm.align.template_align` modify the global rdkit behaviour

[hadim]

See https://github.com/datamol-org/datamol/blob/013d93012abb7fb309a382d8b3eedaca4c2f4425/datamol/align.py#L107

We should not modify the global behaviour. The best is probably to put back the original value if it has been modified. This is not ideal in when doing multithreading.

[maclandrol]

Good point, I remember looking at that and did not find any way to know the current state of PreferCoordGen from python in order to restore it.

[hadim]

Ok thanks (that was my first guess as well). A context manager for this would be nice. I'll try to investigate this more and eventually raise an issue upstream.