Default to using 'desktop' for the base seed so we don't have another place we have to extend the list for each new flavor (ubuntu-unity)

debian/changelog

@@ -1,3 +1,10 @@
+livecd-rootfs (2.782) UNRELEASED; urgency=medium
+
+  * Default to using 'desktop' for the base seed so we don't have another
+    place we have to extend the list for each new flavor (ubuntu-unity)
+
+ -- Steve Langasek <steve.langasek@ubuntu.com>  Thu, 22 Sep 2022 15:36:25 -0700
+
 livecd-rootfs (2.781) kinetic; urgency=medium
 
   * Drop override of components for raspi images.  The reference to

live-build/auto/config

@@ -1025,9 +1025,6 @@ esac
 # we'll expand the base seed given here according to the STRUCTURE file, and
 # then look in all of the seeds found to see which snaps are seeded
 case $PROJECT:${SUBPROJECT:-} in
-	ubuntu:*|kubuntu*:*|lubuntu*:*|xubuntu*:*|ubuntu-mate*:*|ubuntustudio*:*|ubuntukylin*:*|ubuntu-budgie*:*)
-		BASE_SEED='desktop'
-		;;
 	ubuntu-wsl:*)
 		BASE_SEED='wsl'
 		;;
@@ -1037,6 +1034,9 @@ case $PROJECT:${SUBPROJECT:-} in
 	ubuntu-server:live)
 		BASE_SEED='server'
 		;;
+	*)
+		BASE_SEED='desktop'
+		;;
 esac
 
 if [ "$PASSES_TO_LAYERS" != "true" ] && [ -n "${BASE_SEED}" ]; then