Fix #23680: Explode with Split Edges over SubSurf - crash

Edge splitting function used CDDM_get_faces to get faces array, which isn't correct
for this case: dm's type is ccgDM. Use dm->getFaceArray instead.

source/blender/modifiers/intern/MOD_explode.c

@@ -187,7 +187,7 @@ static int edgesplit_get(EdgeHash *edgehash, int v1, int v2)
 static DerivedMesh * splitEdges(ExplodeModifierData *emd, DerivedMesh *dm){
 	DerivedMesh *splitdm;
 	MFace *mf=0,*df1=0,*df2=0,*df3=0;
-	MFace *mface=CDDM_get_faces(dm);
+	MFace *mface=dm->getFaceArray(dm);
 	MVert *dupve, *mv;
 	EdgeHash *edgehash;
 	EdgeHashIterator *ehi;