Use of custom delimiter changes tag_list

[keerthisiv]

Changing the default delimiter creates an issue how tags are cached and returned when queried again

e.g
set the ActsAsTaggableOn.delimiter = ';'

create a new object that has taggable attribute
@taggable = CachedModel.new(name: 'Bob Jones')

update tag attribute
@taggable.update_attributes(tag_list: 'awesome; epic')

when queried for the tag_list returns
@taggable.tag_list

=> ["awesome", "epic"]

@taggable.cached_tag_list

=> "awesome, epic"

which is fine but when the object is retrieved again and queried the same the results are not as expected
@taggable = CachedModel.find_by_name('Bob Jones')
@taggable.tag_list

=> ["awesome, epic"]

@taggable.cached_tag_list

=> "awesome, epic"

As u can see the difference in tag_list from ["awesome", "epic"] to ["awesome, epic"] is the issue and investigating shows the problem is related to how the cached_tag_list is saved.