MINOR: stats: set the appctx flags when initializing the applet only

When "show stat" is emitted on the CLI, we need to set the relevant
flags on the appctx. We must not re-adjust them while dumping a proxy.
diff --git a/src/stats.c b/src/stats.c
index 7063ad0..afa2e30 100644
--- a/src/stats.c
+++ b/src/stats.c
@@ -2084,14 +2084,6 @@
 	struct channel *rep = si_ic(si);
 	struct server *sv, *svs;	/* server and server-state, server-state=server or server->track */
 	struct listener *l;
-	unsigned int flags;
-
-	if (uri)
-		flags = appctx->ctx.stats.flags;
-	else if ((strm_li(s)->bind_conf->level & ACCESS_LVL_MASK) >= ACCESS_LVL_OPER)
-		flags = STAT_SHLGNDS | STAT_SHNODE | STAT_SHDESC;
-	else
-		flags = STAT_SHNODE | STAT_SHDESC;
 
 	chunk_reset(&trash);
 
@@ -2186,7 +2178,7 @@
 			}
 
 			/* print the frontend */
-			if (stats_dump_li_stats(si, px, l, flags)) {
+			if (stats_dump_li_stats(si, px, l, appctx->ctx.stats.flags)) {
 				if (!stats_putchk(rep, htx, &trash))
 					goto full;
 			}
@@ -2232,7 +2224,7 @@
 				continue;
 			}
 
-			if (stats_dump_sv_stats(si, px, flags, sv)) {
+			if (stats_dump_sv_stats(si, px, appctx->ctx.stats.flags, sv)) {
 				if (!stats_putchk(rep, htx, &trash))
 					goto full;
 			}
@@ -2243,7 +2235,7 @@
 
 	case STAT_PX_ST_BE:
 		/* print the backend */
-		if (stats_dump_be_stats(si, px, flags)) {
+		if (stats_dump_be_stats(si, px, appctx->ctx.stats.flags)) {
 			if (!stats_putchk(rep, htx, &trash))
 				goto full;
 		}
@@ -3812,7 +3804,10 @@
 {
 	appctx->ctx.stats.scope_str = 0;
 	appctx->ctx.stats.scope_len = 0;
-	appctx->ctx.stats.flags = 0;
+	appctx->ctx.stats.flags = STAT_SHNODE | STAT_SHDESC;
+
+	if ((strm_li(si_strm(appctx->owner))->bind_conf->level & ACCESS_LVL_MASK) >= ACCESS_LVL_OPER)
+		appctx->ctx.stats.flags |= STAT_SHLGNDS;
 
 	if (*args[2] && *args[3] && *args[4]) {
 		struct proxy *px;