Reset opts in some functions affected by GLOB_SUBST

Should fix GitHub #334

src/widgets.zsh

@@ -37,6 +37,8 @@ _zsh_autosuggest_clear() {
 
 # Modify the buffer and get a new suggestion
 _zsh_autosuggest_modify() {
+	emulate -L zsh
+
 	local -i retval
 
 	# Only available in zsh >= 5.4
@@ -104,6 +106,8 @@ _zsh_autosuggest_fetch() {
 
 # Offer a suggestion
 _zsh_autosuggest_suggest() {
+	emulate -L zsh
+
 	local suggestion="$1"
 
 	if [[ -n "$suggestion" ]] && (( $#BUFFER )); then