[LyX/master] Handle nested \cprotect

[Juergen Spitzmueller]

commit 51466fe6498150b75168c1d778a68ca0d7fea687
Author: Juergen Spitzmueller <sp...@lyx.org>
Date:   Sat Apr 21 09:35:42 2018 +0200

    Handle nested \cprotect
---
 src/insets/InsetText.cpp |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/src/insets/InsetText.cpp b/src/insets/InsetText.cpp
index e65f7e9..b38a1dc 100644
--- a/src/insets/InsetText.cpp
+++ b/src/insets/InsetText.cpp
@@ -1088,6 +1088,11 @@ InsetText::XHTMLOptions 
operator|(InsetText::XHTMLOptions a1, InsetText::XHTMLOp
 
 bool InsetText::needsCProtection() const
 {
+       // Nested cprotect content needs \cprotect
+       // on each level
+       if (hasCProtectContent())
+               return true;
+
        if (!getLayout().needsCProtect())
                return false;