Issue Summary

This is reproducible on Data Center: N/A

When pasting text with space/s at the beginning on a field, space/s at the beginning of the line are removed/trimmed. This also occurs when space/s exists in the default value of a filed and we see it on the create issue screen.

Steps to Reproduce

1. Create a new custom field and set it up to show in the issue screen (on a new tab)
2. Paste a text with space/s at the beginning like below, on the field
3. 
4. Save the value in the field.

Expected Results

The field should not remove the spaces and it will show in the field.

Actual Results

If the field has Default Style renderer, the spaces are not shown in the UI once saved but if you edit the field, you will still see the spaces are still there. Also, the spaces are not removed when the value is returned via API. 

If the field has Wiki Style renderer, the spaces are removed in the UI and even editing it won't show the spaces. Spaces at the beginning of the line are also not returned via API. 

Workaround

If you use Default Style renderer, it is possible to see the spaces when you edit the field. The spaces are also sent accurately if the value of the field is retrieved via API.