Misplaced cd command caused working directory errors. Fixed.

chertex.sh

@@ -134,9 +134,9 @@ if [ $# -eq 1 ]; then
          for newphoto in $newphotos; do
             cp --parents $newphoto .lowres/
          done
-         # cd - also creates output (the current wd). Redirect to null suppresses the output.
-         cd - >/dev/null
       fi
+      # revert the effects of cd above. Redirect to null suppresses the output.
+      cd - >/dev/null
       # in the low-res tree, find any photo larger than specific size (500kB)
       largephotos="$(find /media/bay/taha/chepec/thesis/assets/photos/.lowres/ -size +500k)"
       for largephotofilename in $largephotos; do