bug#55247: [29.0.50; TRAMP] Tramp Always Thinks Buffer Changed On Disk After Edit -> Save

[Jacob Faibussowitsch]

Hello,

Note: anything between angled brackets “< >” is not literal, but rather a 
description.

Problem:

Any time I edit and save a remote buffer over tramp, I get

```
<file name> changed on disk; really edit the buffer? (y, n, r or C-h)
```

The next time I try to edit the file. I know for a fact that the file has not 
changed, as I have compared copies of the file:

1. 
```
$ cp remote/file.c remote/file_tmp.c
```
2. Make a change in `file.c`, save, revert it, and save again (prompted each 
time with “buffer changed on disk”).
3. 
```
$ diff file.c file_tmp.c
```

And they are identical.

Reproduce:

1. 
```
$ emacs -Q /ssh:<ssh alias>:path/to/file
```
2. Change something
3. C-x C-s
4. Try to change something else
5.
```
<file name> changed on disk; really edit the buffer? (y, n, r or C-h)
```

Best regards,

Jacob Faibussowitsch
(Jacob Fai - booss - oh - vitch)

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