Sergey Sharybin 26b2323189 Fix memory leak when saving OpenEXR files
It is not a good idea to:

1. Duplicate metadata to self
2. Ignore the fact that something might have had metadata already.

Also moved metadata copy to a preparation function, so it is
never lost.
2017-05-16 15:36:29 +02:00
2017-04-27 21:41:03 +10:00
2017-04-29 16:20:06 +10:00
2017-03-11 20:48:12 +11:00
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