transaction: avoid garbage collecting the anchor job

Make sure the anchor job is never considered garbage, even if it has no links
leading to it (this will be allowed in the next patch).

diff --git a/src/core/transaction.c b/src/core/transaction.c
index cac58e6834769c99df03e09a7d7ca09bfcbeffb2..ddb02c068a8b5075158d438ce45f0fbc7673904f 100644 (file)
--- a/src/core/transaction.c
+++ b/src/core/transaction.c
@@ -454,7 +454,7 @@ static void transaction_collect_garbage(Transaction *tr) {
                 again = false;
 
                 HASHMAP_FOREACH(j, tr->jobs, i) {
-                        if (j->object_list) {
+                        if (tr->anchor_job == j || j->object_list) {
                                 /* log_debug("Keeping job %s/%s because of %s/%s", */
                                 /*           j->unit->id, job_type_to_string(j->type), */
                                 /*           j->object_list->subject ? j->object_list->subject->unit->id : "root", */