Fix an excessive loop when parsing an APE file.
Fix an excessive loop when parsing an APE file.

pbhd/taglib,Distrotech/taglib,TsudaKageyu/taglib,Distrotech/taglib,MaxLeb/taglib,davispuh/taglib,i80and/taglib,TsudaKageyu/taglib,davispuh/taglib,pbhd/taglib,dlz1123/taglib,black78/taglib,taglib/taglib,videolabs/taglib,dlz1123/taglib,black78/taglib,pbhd/taglib,videolabs/taglib,TsudaKageyu/taglib,davispuh/taglib,black78/taglib,i80and/taglib,taglib/taglib,dlz1123/taglib,Distrotech/taglib,taglib/taglib,MaxLeb/taglib,i80and/taglib,videolabs/taglib,MaxLeb/taglib