Created attachment 849413 [details]
guided rule before reopening

Description of problem:
If you leave a constraint element on a String field incomplete, save and reopen, the definition for this element will change and all conditions elements that were below it will disappear.


Version-Release number of selected component (if applicable):
BPMS 6.0 ER7


Steps to Reproduce:
With data model including StringFact POJO with attribute field of type String:
1. Open or create a new guided rule.
2. Add some valid condition elements:
     There is a Fact1 with: field1 equal to 1
     There is a Fact2 with: field2 equal to "some text"
3. Add StringFact, click it to add a constraint on field.
4. Select an operator (e.g. equal to).
5. Add a few more valid condition elements, similar to step 2.
6. Save, close and reopen the rule.


Actual results:
Condition elements from step 2 are present, elements from step 4 are not. Condition added in step 3 has changed to "Any of the following are true: There is a StringFact".


Expected results:
Condition elements both from step 2 and step 4 are present. Element from step 3 does not contain the incomplete constraint, but is otherwise unchanged (the same behaviour as with other types).


Additional info:
The issue seems to be with String fields only, e.g. Integer fields were ok.
If you don't select an operator, the (unfinished) constraint won't get into the rule source and rule reopens as it should (only the incomplete constraint is missing, as per bug 1023126 comment 5).