Variants in hs37d5 decoy sequence

Question

[chenyufanxin]

Hi, I have just used gatk to call variants with the reference genome hs37d5 . And I got some variants located in the decoy sequence hs37d5. As far as I konw, the decoy sequence hs37d5 is not intended for calling variants but for increasing the mapping rate. So do I need to filter those variatns located in the decoy sequence? I'll appreciate your help!