Matthias Kuhn 22dc096692 Enable WFS test with a fix to prevent crash on exit (#3774)
* Revert "Disable failing PyQgsOfflineEditingWFS test"

This reverts commit 33ee514b5dfdc1b57558cb9007df5b455a59fc17.

* Let lifetime of layers be controlled by QGIS
2016-11-21 22:07:52 +01:00
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