Search does not find UTF8 values

[Stavro Mueller]

When searching for hex values within a UTF-8 encoded file, the search does not find the second character in a MBCS character.

Steps to reproduce
Create plain text file in UTF8 containing a character such as e acute preceded by a space.
Switch to hex mode, the text should show as
20 c3 a9
Hit Home to set cursor to beginning of file
Hit ^F to search and enter value a9

Expected
The character is found at Address 2

Actual
Message Find / Can't find is shown.

Notes
The search is successful for c3 or c3 a9