Description based on -> "Description bi ased on" in Chinese

[cfoster-lc]

Marva Quartz → In 588, when 'Description based on' is put in the Chinese vernacular field alongside the other Chinese characters, ScriptShifter romanizes the English to 'Description bi ased on'

Input: Description based on
Outcome: Description bi ased on
Desired: Description based on

N.b., this is likely related to the other noted issue, where the subfield tag '$b' being transliterated into '$bi'.

[scossu]

This is related to #256. b is mapped to bi in the Chinese table.

Please refer to #256 for development on this issue.

[scossu]

Fixed in #276.