The problem is this: when one tries to select a sequence between to annotations (either including them or not, but I am interested in the first case) in circular view it is almost impossible to do it in circular view in the case if the selection should include zero.
Selecting using click - shift+click won't work over zero (rather illogical, it should select the sequence downstream of the first selected annotation, I think), and selecting by dragging doesn't work because it won't start the selection in the beginning of the first annotation but rather it starts on the first selected nucleotide.

This is a crucial thing when one works with plasmids a lot...