Item not found: Annotation[new]

[Nicklas Nordborg]

The following error message is displayed when annotating an item and doing the following:

1. Enter a value for an annotation that doesn't previously have a value
2. Remove the value
3. Save

The stracktrace is available in the Tomcat error log:

net.sf.basedb.core.ItemNotFoundException: Item not found: Annotation[new]
  at net.sf.basedb.core.DbControl.deleteItem(DbControl.java:922)
  at net.sf.basedb.core.AnnotationSet.removeAnnotation(AnnotationSet.java:435)
  at net.sf.basedb.clients.web.Base.updateAnnotations(Base.java:1075)
  at org.apache.jsp.admin.pluginconfigurations.index_jsp._jspService(index_jsp.java:191)
...

The problem is that the JSP sends a "remove annotation" request for the annotation because of step 2. Since it didn't exist in the first place this should simply be ignored by the core.

[Nicklas Nordborg]

(In [3980]) Fixes #829: Item not found: Annotation[new]