Berthold Stoeger b3fd824d18 Map: catch null divesites in map widget selection code
Just to be sure, refuse to add null divesites to the selection.

Moreover, refuse to call the setSelected function on a null-divesite.
I got an unfriendly Qt-Warning there:

"Passing incompatible arguments to C++ functions from JavaScript is
dangerous and deprecated."
"This will throw a JavaScript TypeError in future releases of Qt!"

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2019-08-28 07:12:01 -07:00
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