Overview: When user create new Patron notice template -> fill in 'Patron notice template name' and 'Body' mandatory fields with correct value and fill in 'Subject' with spaces -> click 'Save & Close' button ->  validation messages are shown  and all entered info is lost 

This validation messages are the same when user edit existing 'Patron notice template'

But info is not lost when user clicks 'Save&Close' button.

Precondition: 

Test env is opened

User have permissions to create Patron notice template 

Settings -> Circulation is opened
Steps to Reproduce:

1. Click on 'Patron notice template'

2. Click on '+New' button in the top right corner

3. Fill in 'Patron notice template name' and 'Body' mandatory fields with correct info(e.g. 'Testing template')

4. Fill in 'Subject' with _' '  space

5. Click 'Save & Close' button

Expected Results:

1. All existing 'Patron notice templates' are shown

2. New 'Patron notice template' window is opened

3. 'Testing template' is entered into 'Patron notice template name' and 'Body' mandatory fields

4.  _' '  space is entered into 'Subject'

5. Validation messages are shown (TBD)  and entered earlier info is not lost. 

Actual Results:

1. All existing 'Patron notice templates' are shown

2. New 'Patron notice template' window is opened

3. 'Testing template' is entered into 'Patron notice template name' and 'Body' mandatory fields

4.  _' '  space is entered into 'Subject'

5. Validation messages are shown (TBD)  and entered earlier info is lost. 

TBD: "Please fill this in to continue"
I.e. show existing validation message