'View sample details' does not generate an overview if no species have been recorded

[chrisvanswaay]

If I want to see the details of one of my counts, this only works if at least one butterfly has been seen. However I can edit them (and that way see the details, but it's better to use the view if you don't want to make changes).
So e.g. sampleid 27276576:

• if I click 'View sample details', I get the message that this sample doesn't exist:
  

• If I click 'Edit sample details' I get the page to make changes:
  

This only happens when there are no butterflies recorded.