[ISSUE] mless N:x seems off-by-one.

[ISSUE] mless N:x seems off-by-one.

[rnkn]

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New issue by rnkn on mblaze repository

https://github.com/leahneukirchen/mblaze/issues/261

Description:
Hello,

mless appears to be off-by-one when issuing the `N:x` command.

## To reproduce

```
$ mlist Maildir/ | mless
2:n
1:x
```
And then
```
2:x
```

## Expected results

Navigation back to message 1.

## Actual results

First the error
```
mless scan// (message 1 of 6)
```
And then
```
mless 1 (message 2 of 6)
```

Re: mless N:x seems off-by-one.

[leahneukirchen]

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New comment by leahneukirchen on mblaze repository

https://github.com/leahneukirchen/mblaze/issues/261#issuecomment-2226213163

Comment:
Not sure I follow... `:x` goes to the first file in less, which is the `//scan` output.

So `:x:n` will move to the first message.  `N` goes to the first unread message.

Re: mless N:x seems off-by-one.

[rnkn]

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New comment by rnkn on mblaze repository

https://github.com/leahneukirchen/mblaze/issues/261#issuecomment-2226731562

Comment:
I'm using `N` as a placeholder for any number, so e.g. with a bunch of files open in less, `10:x` goes to the 10th file, whereas with a bunch of messages open in mless `10:x` goes to the 9th message. Is this intended?

Re: mless N:x seems off-by-one.

[rnkn]

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New comment by rnkn on mblaze repository

https://github.com/leahneukirchen/mblaze/issues/261#issuecomment-2226731977

Comment:
Sorry, my first post is very unclear.

Re: mless N:x seems off-by-one.

[leahneukirchen]

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New comment by leahneukirchen on mblaze repository

https://github.com/leahneukirchen/mblaze/issues/261#issuecomment-2226916493

Comment:
I think that's not avoidable, as the first file is the scan overview...

Re: mless N:x seems off-by-one.

[rnkn]

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New comment by rnkn on mblaze repository

https://github.com/leahneukirchen/mblaze/issues/261#issuecomment-2227259236

Comment:
What about `0:x` for the scan overview?

Re: mless N:x seems off-by-one.

[rnkn]

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New comment by rnkn on mblaze repository

https://github.com/leahneukirchen/mblaze/issues/261#issuecomment-2227259236

Comment:
What about `0:x` for the scan overview?

**Edit**: I see the `0:x` already show the scan overview...