Describe the bug
Only the first tab label name was saved in a workspace

Expected behavior
All tab label names that was saved in a workspace still need to be intact when open the saved workspace

Screenshots
This was the tab label names in a saved workspace before exiting vim

Open the saved workspace

Version(s) (please complete the following information):

• OS: Arch Linux
• Version Nvim-Nightly (v0.5.0-dev+998-g48caf1df8)