YAML frontmatter duplicates a new line on each opening of the file

[Ciantic]

Description

Creates unwanted newlines on the end of the YAML frontmatter.

Steps to reproduce

1. Open the file , see Example file below
2. On opening the file, Marktext adds an unwanted new line below created: 2018-09-15 line.
3. Save, and close the file
4. Re-open the file, notice it added a second new line after the created.

Expected behavior: [What you expected to happen]

No newlines after the created line.

Actual behavior: [What actually happened]

It adds a newline on each re-open.

Example file:

---
title: Some title
category: test
created: 2018-09-15
---

Testing this markdown editor...

Try editing this, save, then close the editor. Re-open this file. It adds a newline after the `created: 2018-09-15` line each time one re-opens the file.

Versions

• Mark Text: v0.12.25
• OS: Win 10 (64bit)