Delete also vertex_ in packBoth()

Otherwise it will not be set to the unpacked values in unpackVtx().

DataFormats/PatCandidates/interface/PackedCandidate.h

@@ -595,7 +595,7 @@ namespace pat {
     void packVtx(bool unpackAfterwards=true) ;
     void unpackVtx() const ;
     void maybeUnpackBoth() const { if (!p4c_) unpack(); if (!vertex_) unpackVtx(); }
-    void packBoth() { pack(false); packVtx(false); delete p4_.exchange(nullptr); delete p4c_.exchange(nullptr); unpack(); unpackVtx(); } // do it this way, so that we don't loose precision on the angles before computing dxy,dz
+    void packBoth() { pack(false); packVtx(false); delete p4_.exchange(nullptr); delete p4c_.exchange(nullptr); delete vertex_.exchange(nullptr); unpack(); unpackVtx(); } // do it this way, so that we don't loose precision on the angles before computing dxy,dz
     void unpackTrk() const ;
 
     int8_t packedPuppiweight_;