fix deadlock on unknown policy request (#7606)

myrrc · web-flow · commit 75808d5ef0c0 · 2026-04-23T14:23:51.000+01:00
Signed-off-by: Mikhail Kot &lt;to@myrrc.dev&gt;
diff --git a/vortex-session/src/lib.rs b/vortex-session/src/lib.rs
@@ -72,7 +72,9 @@ impl VortexSession {
 
     /// Returns whether unknown plugins should deserialize as foreign placeholders.
     pub fn allows_unknown(&self) -> bool {
-        <Self as SessionExt>::get::<UnknownPluginPolicy>(self).allow_unknown
+        <Self as SessionExt>::get_opt::<UnknownPluginPolicy>(self)
+            .map(|p| p.allow_unknown)
+            .unwrap_or(false)
     }
 }
 

Original file line number	Diff line number	Diff line change
`@@ -72,7 +72,9 @@ impl VortexSession {`
`72`	`72`
`73`	`73`	`/// Returns whether unknown plugins should deserialize as foreign placeholders.`
`74`	`74`	`pub fn allows_unknown(&self) -> bool {`
`75`		`- <Self as SessionExt>::get::<UnknownPluginPolicy>(self).allow_unknown`
	`75`	`+ <Self as SessionExt>::get_opt::<UnknownPluginPolicy>(self)`
	`76`	`+ .map(\|p\| p.allow_unknown)`
	`77`	`+ .unwrap_or(false)`
`76`	`78`	`}`
`77`	`79`	`}`
`78`	`80`