From: Enrico Forestieri <forenr@lyx.org>
Date: Mon, 12 Jun 2017 19:24:52 +0000 (+0200)
Subject: Avoid a crash if an external template is not installed
X-Git-Tag: 2.3.0beta1~252
X-Git-Url: https://git.lyx.org/gitweb/?a=commitdiff_plain;h=c86f9d81e704fa9f8becb178dba54f7bd94bb105;p=features.git

Avoid a crash if an external template is not installed
---

diff --git a/src/frontends/qt4/GuiExternal.cpp b/src/frontends/qt4/GuiExternal.cpp
index 65790327bb..f940a73010 100644
--- a/src/frontends/qt4/GuiExternal.cpp
+++ b/src/frontends/qt4/GuiExternal.cpp
@@ -525,7 +525,10 @@ void GuiExternal::updateTemplate()
 		external::TemplateManager::get();
 	external::Template const * const templ = etm.getTemplateByName(
 		fromqstr(externalCO->itemData(externalCO->currentIndex()).toString()));
-	externalTB->setPlainText(toqstr(translateIfPossible(templ->helpText)));
+	externalTB->setPlainText(toqstr(translateIfPossible(
+				templ ? templ->helpText : docstring())));
+	if (!templ)
+		return;
 
 	// Ascertain which (if any) transformations the template supports
 	// and disable tabs and Group Boxes hosting unsupported transforms.