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fix default after an empty where (#10240)

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should close https://github.com/nushell/nushell/issues/10237

# Description
this is @fdncred's findings 😋 
i just made the PR 😌 

# User-Facing Changes
```nushell
[a b] | where $it == 'c' | last | default 'd'
```
now works and gives `d`


# Tests + Formatting
adds a new `default_after_empty_filter` test.

# After Submitting
This commit is contained in:
Antoine Stevan
2023-09-06 10:39:35 +02:00
committed by GitHub
parent 456e2a8ee3
commit f433b3102f
2 changed files with 11 additions and 1 deletions
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5
crates/nu-command/src/filters/default.rs
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@ -2,7 +2,8 @@ use nu_engine::CallExt;
use nu_protocol::ast::Call;
use nu_protocol::engine::{Command, EngineState, Stack};
use nu_protocol::{
Category, Example, PipelineData, ShellError, Signature, Span, Spanned, SyntaxShape, Type, Value,
Category, Example, IntoPipelineData, PipelineData, ShellError, Signature, Span, Spanned,
SyntaxShape, Type, Value,
};
#[derive(Clone)]
@ -114,6 +115,8 @@ fn default(
},
ctrlc,
)
} else if input.is_nothing() {
Ok(value.into_pipeline_data())
} else {
input.map(
move |item| match item {