Fix native crash.

Change-Id: Ia8871db0248ddbc821605079e2a3e93859f4c9b7
diff --git a/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.h b/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.h
index 5f17951..3cdf6cd 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.h
@@ -43,7 +43,7 @@
     PatriciaTriePolicy(MmappedBuffer::MmappedBufferPtr mmappedBuffer)
             : mMmappedBuffer(std::move(mmappedBuffer)),
               mHeaderPolicy(mMmappedBuffer->getReadOnlyByteArrayView().data(),
-                      FormatUtils::detectFormatVersion(mmappedBuffer->getReadOnlyByteArrayView())),
+                      FormatUtils::detectFormatVersion(mMmappedBuffer->getReadOnlyByteArrayView())),
               mBuffer(mMmappedBuffer->getReadOnlyByteArrayView().skip(mHeaderPolicy.getSize())),
               mBigramListPolicy(mBuffer), mShortcutListPolicy(mBuffer),
               mPtNodeReader(mBuffer, &mBigramListPolicy, &mShortcutListPolicy,