It's a known and very annoying bug.
Issue was already reported in:
http://hub.qgis.org/issues/7321
http://hub.qgis.org/issues/7472
2013/4/23 Mathieu Pellerin nirvn.a...@gmail.com
Greetings,
I've filed an issue over the weekend which IMO is a really serious
regression which shouldn't be
Greetings,
I've filed an issue over the weekend which IMO is a really serious
regression which shouldn't be left unresolved prior to the imminent
2.0 release.
Long story short, when a layer symbology is set to categorized,
graduated, or rule-based, all features will disappear when editing
