Leave a module the node runs inside its own composition to its manifest, as the fold composes it, so taking builds in moves no folded module (issue 1126)

go/compose/frombus/frombus.go

@@ -35,6 +35,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"net/netip"
+	"slices"
 	"sort"
 	"strings"
 
@@ -398,7 +399,9 @@ func fromBuilds(ctx context.Context, r Reader, in *compose.Input, s Scope, p del
 	}
 	for _, pm := range p.Modules {
 		m, ok := modules[pm.Module]
-		if !ok || m.FP2 == "" || s.KeptAt[pm.Module] != "" {
+		if !ok || m.FP2 == "" || s.KeptAt[pm.Module] != "" || slices.Contains(s.InOwn, pm.Module) {
+			// A module it runs inside its own composition is composed there as before: no build of the new form is what
+			// it runs (Scope.InOwn).
 			continue
 		}
 		if man, ok := in.Catalogue[pm.Module]; !ok || (man.Build == nil && !man.Templated()) {