detect: fix decoder only events

Add missing setup part of the decoder event sgh.

Bug: #7414.
(cherry picked from commit b23fa51e331141a2743ef7ded4ec01db951ec697)

diff --git a/src/detect-engine-build.c b/src/detect-engine-build.c
index c34a8adaadfb08c822c13040573f2e256237f248..30a57d2a42c83fbb921aaa2e5fd4ef0e29a387b0 100644 (file)
--- a/src/detect-engine-build.c
+++ b/src/detect-engine-build.c
@@ -2070,6 +2070,7 @@ int SigAddressPrepareStage4(DetectEngineCtx *de_ctx)
     if (de_ctx->decoder_event_sgh != NULL) {
         /* no need to set filestore count here as that would make a
          * signature not decode event only. */
+        SigGroupHeadBuildNonPrefilterArray(de_ctx, de_ctx->decoder_event_sgh);
     }
 
     int dump_grouping = 0;