This update for python3-PyYAML contains the following fixes:

- Adding an implicit resolver to a derived loader should not affect the base loader
- Uniform representation for OrderedDict? across different versions of Python
- Fixed comparison to None warning

This version update to 3.12 unifies the Python 2 and Python 3 sources of the module, as used on SLES 12.

This update was imported from the SUSE:SLE-12:Update update project.