Fix #12678.

diff --git a/src/Buffer.cpp b/src/Buffer.cpp
index 4d7adc3534bc4e1b41f6268605458f49e17d7ddc..f03970b138ea6ac412c7f4d910a47de2a3855ae0 100644 (file)
--- a/src/Buffer.cpp
+++ b/src/Buffer.cpp
@@ -941,6 +941,7 @@ int Buffer::readHeader(Lexer & lex)
        params().clearRemovedModules();
        params().clearIncludedChildren();
        params().pdfoptions().clear();
+       params().document_metadata.clear();
        params().indiceslist().clear();
        params().backgroundcolor = lyx::rgbFromHexName("#ffffff");
        params().isbackgroundcolor = false;