deegree/deegree3 — pull request #311 by copierrj (2014-06-17 12:35:38+00:00)
Title: SQLFeatureStore: trying to remove attribute from feature results in NullPointerException

It is possible to remove a feature attribute by performing an update transaction that doesn't include a value for that attribute:

```xml

app:additionalInfo

```
Within the SQLFeatureStore, this currently results in a NullPointerException. The patch proposed in this pull requests correctly implements this case.