Plains Cree was added as a spelling language to LO as pr request #73973. For some reason, the codes entered was:
using CN (China) instead of CA (Canada) as the country designator code in that locale. This is wrong. Plains Cree is a language of Canada (and the US), not China.
The codes requested clearly stated the correct code CA.
The wrong country code causes issues with spell checking Plains Cree, as spellers are not recognised due to the wrong code.
Setting to NEW.
reported as fixed in bug 73973 for 5.0.6, 5.1.3, 5.2.
*** This bug has been marked as a duplicate of bug 73973 ***