[pitivi] build: Do not enter the dev env when updating it

[Alexandru Băluț <alexbalut src gnome org>]

commit 02f639fdc061f311d2304e874f080ebdfe3741a7
Author: Alexandru Băluț <alexandru balut gmail com>
Date:   Sat May 21 06:54:26 2016 +0200

    build: Do not enter the dev env when updating it
    
    Differential Revision: https://phabricator.freedesktop.org/D1006

 build/xdg-app/pitivi-bundle |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/build/xdg-app/pitivi-bundle b/build/xdg-app/pitivi-bundle
index fc11847..d87282f 100755
--- a/build/xdg-app/pitivi-bundle
+++ b/build/xdg-app/pitivi-bundle
@@ -356,8 +356,8 @@ then
     fi
   fi
 
-  # Launch development environment if we are not creating a bundle
-  if [ -z $BUNDLE ]
+  # Launch development environment if we are not updating it and not creating a bundle
+  if [ -z $BUNDLE ] && [ -z $UPDATE ]
   then
     xdg-app build --socket=x11 --socket=session-bus --socket=pulseaudio \
       --share=network \