there  is a strange problem in tB. If you reply to some message (plain text reply) and you type for example
blah --> zzzz
and then you keep typing, at some point tB moves the text to a new line. Now if the previous line contains ">", the text on the new line automatically starts with all the text preceding the ">" in the previous line - as of my example:
blah -->

Looks like tB treats ">"  characters in replies as a quote, any way to avoid this?