Fix #9732: Inconsistent font properties for the preview and superscript insets

(cherry picked from commit b6f8a84a35)

src/insets/InsetPreview.h

@@ -44,11 +44,13 @@ public:
 	Inset * clone() const { return new InsetPreview(*this); }
 
 	bool neverIndent() const { return true; }
-	
+
+	bool inheritFont() const { return false; }
+
 	InsetCode lyxCode() const { return PREVIEW_CODE; }
-	
+
 	docstring layoutName() const { return from_ascii("Preview"); }
-	
+
 	bool descendable(BufferView const & /*bv*/) const { return true; }
 
 	std::string contextMenuName() const

src/insets/InsetScript.h

@@ -82,6 +82,8 @@ public:
 	///
 	bool neverIndent() const { return true; }
 	///
+	bool inheritFont() const { return false; }
+	///
 	int plaintext(odocstringstream & ods, OutputParams const & op,
 	              size_t max_length = INT_MAX) const;
 	///

status.22x

@@ -227,6 +227,8 @@ What's new
 
 - Fix display of some text-mode accents in the citation preview (bug 9340).
 
+- Fix font display in preview insets (bug 9732).
+
 
 * INTERNALS