Find References With Access Type finds too much

To reproduce:
1. Open a session containing creator master.
2. Open linuxdevicetester.h, RMB over c'tor and "Find References With Access Type". All is fine. All hits in search results come from master branch.
3. Open in the same session linuxdevicetester.h coming from other creator source tree, e.g. from creator 9 and repeat the step 2 - additional hit is being shown.
4. Switch editor to original linuxdevicetester.h coming from master branch and repeat step 2 - additional hit is being shown in search results that comes from 9 branch.
5. Close the editor from step 3 (from branch 9), so that the state is the same as in step 2. Repeat step 2 - the additional hit is still being shown (from branch 9).