Go to last edited is line-dependant

Describe the bug

To Reproduce
Steps to reproduce the behavior:

1. Create a new file, like

Hello World

2. Insert a new last line

Hello World
Last Edited

3. Insert a new line at the top of the file ggO
4. Try to go to the last edited location with g;
5. Cursor is now at the wrong line

Hello Wo<CURSOR HERE>rld
Last Edited

Expected behavior

Hello World
Last Edited<CURSOR HERE>

Screenshots

Environment (please complete the following information):

• Extension Name: vim
• Extension Version: 0.16.9
• OS Version: Darwin x64 17.7.0
• VSCode version: 1.28.0

{
	"activationTimes": {
		"startup": true,
		"codeLoadingTime": 830,
		"activateCallTime": 5,
		"activateResolvedTime": 324,
		"activationEvent": "*"
	}
}

Additional context
The new september vscode release included a new Jump to last edit Command that may fix this

Start by tracing the g; command handling in the VSCodeVim extension and compare it with VS Code's Jump to last edit command mentioned in the issue. Reproduce the steps with an inserted line at the top of a file; done means g; places the cursor at the original last-edited location rather than the wrong line.