Fix _forgit_diff failing when two commits were passed as arguments. T…

…his was introduced in 3770443

bin/git-forgit

@@ -252,7 +252,7 @@ _forgit_diff_view() {
     local diff_context=$2
     local commits=()
     if [ $# -gt 2 ]; then
-        local commits=("${*:3}")
+        IFS=" " read -r -a commits <<< "${*:3}"
     fi
     echo "$input_line" | _forgit_get_files_from_diff_line | xargs -0 \
         "$FORGIT" exec_diff "${commits[@]}" -U"$diff_context" -- | $_forgit_diff_pager
@@ -267,7 +267,7 @@ _forgit_edit_diffed_file() {
 # git diff viewer
 _forgit_diff() {
     _forgit_inside_work_tree || return 1
-    local files opts commits repo preview_cmd enter_cmd
+    local files opts commits repo preview_cmd enter_cmd escaped_commits
     [[ $# -ne 0 ]] && {
         if git rev-parse "$1" -- &>/dev/null ; then
             if [[ $# -gt 1 ]] && git rev-parse "$2" -- &>/dev/null; then
@@ -284,7 +284,9 @@ _forgit_diff() {
     # In order to support passing stashes as arguments to _forgit_diff, we have to
     # prevent fzf from interpreting this substring by escaping the opening bracket.
     # The string is evaluated a few subsequent times, so we need multiple escapes.
-    escaped_commits=${commits//\{/\\\\\{}
+    for commit in "${commits[@]}"; do
+        escaped_commits+="'${commit//\{/\\\\\{}' "
+    done
     preview_cmd="cd '$repo' && $FORGIT diff_view {} $_forgit_preview_context $escaped_commits"
     enter_cmd="cd '$repo' && $FORGIT diff_view {} $_forgit_fullscreen_context $escaped_commits"
     opts="