When Creating Test Run Custom Fields, and choose Date Picker, and the defined language is in Spanish the day of the week does not appear complete

Description
When Creating Test Run Custom Fields, and choosing Date Picker, and the defined language is in Spanish the day of the week does not appear complete

How to reproduce

1. Go to the user account preferences and change the language to Spanish
2. Create a Test Run Custom Field, in type choose Date Picker
3. Test Type Manual
4. Create a Test Execution
5. Run the Test Execution
6. Choose Saturday under the Custom Field previously created (in Spanish the translation is Sabado)
7. It will only appear as an S
8. 

1. Go back to the user account preferences and change the language back to English
2. Re-run the Test Execution after refreshing the page
3. Choose under the same custom field the day of the will appear Saturday:
4. 

Actual result/Attachments

The day of the week appears incomplete regarding the name, and it should appear as the correct weekday name in Spanish as well.

• Attaching Screen-Recording:

Expected result

Expected to have the name of the week appearing entirely, and not incomplete

Version

• V4.008