fix: Use loop in FindByCommit::next to avoid stack overflow

Use an iterative loop with `return` and `continue` to avoid stack overflow.
A stack overflow could have occurred due to the recursion, and
potentially many jobs.

CHANGELOG.md

@@ -7,6 +7,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixes
+
+- Use an iterative loop to avoid stack overflow, through recursion, when using
+  `FindByCommit` iterator.
+
 ## 0.5.0
 
 ### Highlights

src/lib.rs

@@ -657,15 +657,14 @@ impl Iterator for FindByCommit<'_> {
     type Item = Result<(JobId, Job), cob::store::Error>;
 
     fn next(&mut self) -> Option<Self::Item> {
-        let job = self.jobs.next()?;
-        job.and_then(|(id, job)| {
-            if self.wanted(&job) {
-                Ok(Some((JobId::from(id), job)))
-            } else {
-                self.next().transpose()
+        loop {
+            let job = self.jobs.next()?;
+            match job {
+                Ok((id, job)) if self.wanted(&job) => return Some(Ok((JobId::from(id), job))),
+                Ok(_) => continue,
+                Err(err) => return Some(Err(err)),
             }
-        })
-        .transpose()
+        }
     }
 }