buildiso: fix bug when using buildiso; reset profile vars

bin/buildiso.in

@@ -59,6 +59,7 @@ show_profile(){
 			msg2 "disable_openrc: ${disable_openrc[*]}"
 		fi
 	fi
+	unset_profile
 }
 
 display_settings(){

lib/util-iso.sh

@@ -619,6 +619,7 @@ make_profile(){
 		build_images
 		compress_images
 	fi
+	unset_profile
 	msg "Finished building [$1]"
 	msg3 "Time ${FUNCNAME}: $(elapsed_time ${timer_start}) minutes"
 }

lib/util.sh

@@ -238,6 +238,33 @@ load_config(){
 	return 0
 }
 
+unset_profile(){
+	unset initsys
+	unset displaymanager
+	unset autologin
+	unset multilib
+	unset pxe_boot
+	unset plymouth_boot
+	unset nonfree_xorg
+	unset default_desktop_executable
+	unset default_desktop_file
+	unset kernel
+	unset efi_boot_loader
+	unset efi_part_size
+	unset hostname
+	unset username
+	unset plymouth_theme
+	unset password
+	unset addgroups
+	unset start_systemd
+	unset disable_systemd
+	unset start_openrc
+	unset disable_openrc
+	unset start_systemd_live
+	unset start_openrc_live
+	unset use_overlayfs
+}
+
 load_profile_config(){
 
 	[[ -f $1 ]] || return 1