Rainer Stengele <rainer.stengele@diplan.de> writes:

> as the subjct already says ... S-up does not do in the indirect buffer
> what it does in the "direct" buffer.
>
> Instead of a priority I get "Beginning of buffer". Is this a bug?

Yes.  

`org-shiftup' calls `org-at-timestamp-p' (among others) which tries to
go backward while deciding if the cursor is on a timestamp.

This tiny patch provides a temporary workaround by being a bit more
liberal about the narrowed region: