Edit > Preferences sets the default encoding for files, which are opened and which encoding cannot be determined. It does not set the Encoding for the current document. This is done via the Document > Character Encoding. However, this also seems to be refused.
Edit > Preferences sets the default encoding for files, which are opened and which encoding cannot be determined. It does not set the Encoding for the current document. This is done via the Document > Character Encoding. However, this also seems to be refused.
I forwarded this to upstream BTS.