[LyX/master] Disable invalid inset-modify (#9019).

[Juergen Spitzmueller]

commit b57eb397315d24d9a393af5245aa4265c17b1dad
Author: Juergen Spitzmueller <sp...@lyx.org>
Date:   Thu Mar 6 08:34:32 2014 +0100

    Disable invalid inset-modify (#9019).

diff --git a/src/insets/InsetLabel.cpp b/src/insets/InsetLabel.cpp
index 4fbc95d..d78e2b4 100644
--- a/src/insets/InsetLabel.cpp
+++ b/src/insets/InsetLabel.cpp
@@ -204,6 +204,13 @@ bool InsetLabel::getStatus(Cursor & cur, FuncRequest const 
& cmd,
        case LFUN_LABEL_COPY_AS_REFERENCE:
                enabled = true;
                break;
+       case LFUN_INSET_MODIFY:
+               if (cmd.getArg(0) == "changetype") {
+                       // this is handled by InsetCommand,
+                       // but not by InsetLabel.
+                       enabled = false;
+                       break;
+               }
        default:
                return InsetCommand::getStatus(cur, cmd, status);
        }