Spring back a cancelled back preview even though its job is cancelled

identity/src/main/kotlin/de/jeanlucmakiola/floret/identity/Motion.kt

@@ -25,7 +25,9 @@ import androidx.compose.ui.graphics.graphicsLayer
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.unit.IntSize
 import androidx.compose.ui.unit.dp
+import kotlinx.coroutines.NonCancellable
 import kotlinx.coroutines.delay
+import kotlinx.coroutines.withContext
 import kotlin.coroutines.cancellation.CancellationException
 
 /**
@@ -117,8 +119,10 @@ fun Modifier.predictiveBack(
                 repeat(2) { withFrameNanos { } }
                 if (currentVisible == true) progress.animateTo(0f)
             }
-        } catch (_: CancellationException) {
-            progress.animateTo(0f)
+        } catch (e: CancellationException) {
+            // A cancelled gesture also cancels this job, so the spring-back must not be.
+            withContext(NonCancellable) { progress.animateTo(0f) }
+            throw e
         }
     }