Git blame editor window should be RO

[jporkkahtc]

Since the title bar still shows the original filename, it would be best for this buffer to be RO to avoid accidentally editing and losing changes.

[Dan]

I don't see how it can get out of svc_get_annotated_buffer without turning it read only, unless it fails to get the file.

[Dan]

Can you send us your user.cfg.xml?

[jporkkahtc]

Well, I cannot repro that problem now.

However, I found something else :-)

#1: Do Git-blame, then Ctrl-Z (undo).
The buffer is now empty

#2: Do Git-blame, then Save
It complains the file is RO and prompts with "do you wish to: ..."
Of course, the file doesn't really exist.
When you select "Make file writable", then hit OK:
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SlickEdit Pro
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Unable to update read only attribute for: Untitled 2022-09-27 1517
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OK   
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