Description of problem:

Checking Ansible variables on a host hit:

TypeError: string.split is not a function
in O
in a
in f
in div
in s
in t
in t
in f
in l
in d
in s
in d
in C
in t
in t
in t
in t
in d
in section
in PageSection
in M
in t
in t
in u
in f
in d
in div
in c
in p
in y
in t
in n
in a
in C
in s
in div
in b
in IntlProvider
in I18nProviderWrapper(b)
in d
in StoreProvider(I18nProviderWrapper(b))
in DataProvider(StoreProvider(I18nProviderWrapper(b)))

Version-Release number of selected component (if applicable):

6.12

How reproducible:

Easy

Steps to Reproduce:
1. create a new Ansible variable with array type. Default value is ["test"]
2. enable both 'Merge Overrides' and 'Merge Default'
3. add the variable to a role
4. attach the role to a host
5. check the ansible variables on the host
Actual results:

TypeError: string.split is not a function, in O in a in f in div in s in t in t in f in l in d in

Expected results:

should no error

Additional info:

the error only happens when both 'Merge Overrides' and 'Merge Default' are on