see if changing logic a little bit fixes specs

lib/mobility/plugins/fallbacks.rb

@@ -142,20 +142,21 @@ def define_read(fallbacks)
           return super(locale, options) if !fallback || options[:locale]
 
           fallback_locales =
-            if fallback == true
-              if fallbacks.is_a?(Proc)
-                model.instance_exec(&fallbacks)
+            Util.array_wrap(
+              if fallback == true
+                if fallbacks.is_a?(Proc)
+                  model.instance_exec(&fallbacks)
+                else
+                  fallbacks[locale]
+                end
+              elsif fallback.is_a?(Proc)
+                model.instance_exec(&fallback)
               else
-                fallbacks[locale]
+                fallback
               end
-            elsif fallback.is_a?(Proc)
-              model.instance_exec(&fallback)
-            else
-              fallback
-            end
-
-          locales = [locale, *fallback_locales]
-          locales.each do |fallback_locale|
+            )
+
+          fallback_locales.each do |fallback_locale|
             value = super(fallback_locale, options)
             return value if Util.present?(value)
           end

lib/mobility/util.rb

@@ -109,6 +109,17 @@ def presence(object)
       object if present?(object)
     end
 
+    # taken from https://github.com/rails/rails/blob/6-0-stable/activesupport/lib/active_support/core_ext/array/wrap.rb
+    def array_wrap(object)
+      if object.nil?
+        []
+      elsif object.respond_to?(:to_ary)
+        object.to_ary || [object]
+      else
+        [object]
+      end
+    end
+
     private
 
     # Calls caller method on object if defined, otherwise yields to block