One more FMC quirk

[Mikealpha]

When selecting a new STAR due to a runway change the FMC adds that to the existing one instead of removing the previous one. Example :

Initial setup for EFHK Runway 33 STAR LAKU7W
....
LAKUT
MAROM
VIBET
HK862
HK947
SOPOS
EFHK

After selecting a new Runway on MENU/ARRIVE Page (Runway 22L STAR LAKU5A) I get this in the FPL :
.....
LAKUT
MAROM
HK862
SOPOS
LAKUT
MAROM
VIBET
HK942
HK951
LASTU
KAAVI
EFHK