Regression: Searching for issues with invalid options throws error

Steps to reproduce:

1. install JIRA 5.2.2 -> JIRA 5.2.11
2. create cascading select custom field like
3. set the cascading select to be applicable limited to a few project
4. create JQL and save it as filter using :

    Cas in cascadeOption(10000, 10003)
   

   this JQL does not throw error

5. create JQL like without specifying the project using the following JQL and save the filter:

   cas in (p2)
   

6. (bug) access the filter created in step 5 and it will throws

   com.atlassian.jira.issue.customfields.impl.FieldValidationException: Value: 'p2' is an invalid Option
   	at com.atlassian.jira.issue.customfields.impl.CascadingSelectCFType.getOptionFromStringValue(CascadingSelectCFType.java:481)
   	at com.atlassian.jira.issue.customfields.impl.CascadingSelectCFType.extractOptionFromParams(CascadingSelectCFType.java:464)
   	at com.atlassian.jira.issue.customfields.impl.CascadingSelectCFType.getOptionMapFromCustomFieldParams(CascadingSelectCFType.java:442)
   	at com.atlassian.jira.issue.customfields.impl.CascadingSelectCFType.getValueFromCustomFieldParams(CascadingSelectCFType.java:334)
   	at com.atlassian.jira.issue.customfields.impl.CascadingSelectCFType.getValueFromCustomFieldParams(CascadingSelectCFType.java:69)
   	at com.atlassian.jira.issue.customfields.DefaultCustomFieldValueProvider.getValue(DefaultCustomFieldValueProvider.java:23)
   

Additional notes

• This error seems to be fixed in more recent JIRA version like JIRA 6.1.7 (tested)