fix bug where $XDG_DATA_HOME is not set properly when switching between users via su

autojump.bash

@@ -47,8 +47,8 @@ EOF
 complete -o default -o bashdefault -F _autojump_files cp mv meld diff kdiff3 vim emacs
 
 #determine the data directory according to the XDG Base Directory Specification
-if [ -n "$XDG_DATA_HOME" ]; then
-    export AUTOJUMP_DATA_DIR="$XDG_DATA_HOME/autojump"
+if [[ -n ${XDG_DATA_HOME} ]] && [[ ${XDG_DATA_HOME} =~ ${USER} ]]; then
+    export AUTOJUMP_DATA_DIR="${XDG_DATA_HOME}/autojump"
 else
     export AUTOJUMP_DATA_DIR=~/.local/share/autojump
 fi

autojump.zsh

@@ -15,7 +15,7 @@
 #along with autojump.  If not, see <http://www.gnu.org/licenses/>.
 
 # determine the data directory according to the XDG Base Directory Specification
-if [[ -n ${XDG_DATA_HOME} ]]; then
+if [[ -n ${XDG_DATA_HOME} ]] && [[ ${XDG_DATA_HOME} =~ ${USER} ]]; then
     export AUTOJUMP_DATA_DIR="${XDG_DATA_HOME}/autojump"
 else
     export AUTOJUMP_DATA_DIR=${HOME}/.local/share/autojump