Initialize DialInfo::DATAstruct with the proper blank values

CHANGELOG.md

@@ -118,6 +118,7 @@
     Bug #6717: Broken script causes interpreter stack corruption
     Bug #6718: Throwable weapons cause arrow enchantment effect to be applied to the whole body
     Bug #6730: LoopGroup stalls animation after playing :Stop frame until another animation is played
+    Bug #6753: Info records without a DATA subrecords are loaded incorrectly
     Feature #890: OpenMW-CS: Column filtering
     Feature #1465: "Reset" argument for AI functions
     Feature #2491: Ability to make OpenMW "portable"

components/esm3/loadinfo.cpp

@@ -133,12 +133,7 @@ namespace ESM
 
     void DialInfo::blank()
     {
-        mData.mUnknown1 = 0;
-        mData.mDisposition = 0;
-        mData.mRank = 0;
-        mData.mGender = 0;
-        mData.mPCrank = 0;
-        mData.mUnknown2 = 0;
+        mData = {};
 
         mSelects.clear();
         mPrev.clear();

components/esm3/loadinfo.hpp

@@ -43,6 +43,8 @@ struct DialInfo
         signed char mGender; // See Gender enum
         signed char mPCrank; // Player rank
         signed char mUnknown2;
+
+        DATAstruct() : mDisposition(0), mRank(-1), mGender(Gender::NA), mPCrank(-1) {}
     }; // 12 bytes
     DATAstruct mData;