#354 Filter w/o variable Parameters not working

Testcase to check if filtering in documents works fine

1. Open material Receipt Candidates Window

2. Press Filter Selection and choose “Streckengeschäft”

3. select Apply
   • => filter applies and only “Streckengeschäft” documents are shown
4. Press Filter Selection again, select apply
   • => no errors
5. use Clear filter and change the filter several times and check if you have the correct result
   • => all filters work, showing the right result

6. clear filter and select a default filter, e.g. product

7. without refreshing the page, select home button then select billing candidates using the search field (without selecting anything else in between)
   • => billing candidates window opens
   • => Filter Selection is empty