Small improvement to RefPrefix.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@34854 a592a061-630c-0410-9148-cb99ea01b6c8

lib/doc/Customization.lyx

@@ -1,5 +1,5 @@
 #LyX 2.0.0svn created this file. For more info see http://www.lyx.org/
-\lyxformat 393
+\lyxformat 394
 \begin_document
 \begin_header
 \textclass scrbook
@@ -13075,6 +13075,25 @@ string
 
 ] The prefix to use when creating labels referring to floats of this type.
  This allows the use of formatted references.
+ Note that you can remove any 
+\begin_inset Flex CharStyle:Code
+status collapsed
+
+\begin_layout Plain Layout
+RefPrefix
+\end_layout
+
+\end_inset
+
+ set by a copied style by using the special value 
+\begin_inset Quotes eld
+\end_inset
+
+OFF
+\begin_inset Quotes erd
+\end_inset
+
+, which must be all caps.
 \end_layout
 
 \begin_layout Description
@@ -17777,6 +17796,7 @@ hor_pos "c"
 has_inner_box 1
 inner_pos "t"
 use_parbox 0
+use_makebox 0
 width "100col%"
 special "none"
 height "1in"

src/Layout.cpp

@@ -507,9 +507,15 @@ bool Layout::read(Lexer & lex, TextClass const & tclass)
 			break;
 		}
 			
-		case LT_REFPREFIX:
-			lex >> refprefix;
+		case LT_REFPREFIX: {
+			docstring arg;
+			lex >> arg;
+			if (arg == "OFF")
+				refprefix.clear();
+			else
+				refprefix = arg;
 			break;
+		}
 
 		case LT_HTMLTAG:
 			lex >> htmltag_;