Diff chunk contains an unchanged line

[bersbersbers]

Issue Type: Bug

First file:

if (cond) {
    cmd
}

Second file:

if (cond) {
    if (other_cond) {
        cmd
    }
}

The diff:

The diff chunk contains the same final line in both files - it could/should be shorter.

VS Code version: Code - Insiders 1.56.0-insider (25785b9, 2021-04-15T05:14:21.699Z)
OS version: Windows_NT x64 10.0.19043
Remote OS version: Linux x64 5.3.18-lp152.44-default

[vscodebot]

(Experimental duplicate detection)
Thanks for submitting this issue. Please also check if it is already covered by an existing one, like:

• "if" braces deindentation problem (same as Issue #30933) happens with the C/C++ extension (#112299)

[bersbersbers]

The problem is not restricted to just single lines. This could be 3 changed lines of code - instead, it's 10:

[bersbersbers]

Thank you :)