Commit c3514b0b82e90e660c996e81a525d42c025503ab

lhchavez 2017-12-23T14:59:07

Fix unpack double free If an element has been cached, but then the call to packfile_unpack_compressed() fails, the very next thing that happens is that its data is freed and then the element is not removed from the cache, which frees the data again. This change sets obj->data to NULL to avoid the double-free. It also stops trying to resolve deltas after two continuous failed rounds of resolution, and adds a test for this.