Fix script 12-mojo.sh

base/scripts/usr/local/bin/before-notebook.d/12-mojo.sh

@@ -4,6 +4,8 @@
 
 set -e
 
+MODULAR_HOME_BAK="$MODULAR_HOME"
+
 # Append the user's modular bin dir to PATH
 if [ "$(id -u)" == 0 ] ; then
   if ! grep -q "user's modular bin dir" "/home/$NB_USER${DOMAIN:+@$DOMAIN}/.bashrc"; then
@@ -49,6 +51,9 @@ else
   fi
 fi
 
+MODULAR_HOME="$MODULAR_HOME_BAK"
+unset MODULAR_HOME_BAK
+
 # MAX SDK: Evaluate and set version
 if [ "$(id -u)" == 0 ] ; then
   if [ "${MOJO_VERSION}" = "nightly" ]; then