Fill in the blank group-title

Resolves #6017

tests/__data__/expected/logs/generate-playlists/categories.log

@@ -2,6 +2,5 @@
 {"name":"General","slug":"general","count":1}
 {"name":"Legislative","slug":"legislative","count":1}
 {"name":"News","slug":"news","count":1}
-{"name":"Religious","slug":"religious","count":1}
 {"name":"XXX","slug":"xxx","count":1}
-{"name":"Other","slug":"other","count":0}
+{"name":"Other","slug":"other","count":1}