It does not make sense to look in non-Org buffers for backlinks of items, but
this was indeed what happend until now: the function `db/org-get-location` only
checked whether the current buffer is associated with a file, and if so uses it
for querying the user for an item to select. This does not make sense, as
`db/org-get-location` is supposed to return a mark to an Org item.
This is now fixed by `db/org-get-location` to also check whether the current
buffer is also an Org buffer. It's as simple as that.
Daniel Borchmann
b670ee57f6
