Map in LookUpGlyphBitmap even when unsuccessful

core/fxge/ge/cfx_facecache.cpp

Index: core/fxge/ge/cfx_facecache.cpp
diff --git a/core/fxge/ge/cfx_facecache.cpp b/core/fxge/ge/cfx_facecache.cpp
index 6c5bba20187ce159609ac255025649d827d0bb84..2b8405941eb61c42b88250201aef611042c242d8 100644
--- a/core/fxge/ge/cfx_facecache.cpp
+++ b/core/fxge/ge/cfx_facecache.cpp
@@ -386,9 +386,6 @@ CFX_GlyphBitmap* CFX_FaceCache::LookUpGlyphBitmap(
 
   CFX_GlyphBitmap* pGlyphBitmap = RenderGlyph(pFont, glyph_index, bFontStyle,
                                               pMatrix, dest_width, anti_alias);
-  if (!pGlyphBitmap)
-    return nullptr;
-
   pSizeCache->m_GlyphMap[glyph_index] = pGlyphBitmap;
   return pGlyphBitmap;
 }