two small resolved fixups (#41337)

src/resolve/resolved-etc-hosts.c

@@ -72,7 +72,8 @@ void etc_hosts_clear(EtcHosts *hosts) {
 void manager_etc_hosts_flush(Manager *m) {
         etc_hosts_clear(&m->etc_hosts);
         m->etc_hosts_stat = (struct stat) {};
-        m->etc_hosts_last = USEC_INFINITY;
+        /* NB: We do not reset m->etc_hosts_last here, because manager_etc_hosts_read() calls us and needs it
+         * to stay in effect for the reload suppression to work */
 }
 
 static int parse_line(EtcHosts *hosts, unsigned nr, const char *line) {

src/resolve/resolved-manager.c

@@ -664,6 +664,9 @@ static int manager_dispatch_reload_signal(sd_event_source *s, const struct signa
         manager_etc_hosts_flush(m);
         manager_static_records_flush(m);
 
+        m->etc_hosts_last = USEC_INFINITY;
+        m->static_records_last = USEC_INFINITY;
+
         manager_set_defaults(m);
 
         r = dns_trust_anchor_load(&m->trust_anchor);

src/resolve/resolved-static-records.c

@@ -29,7 +29,7 @@
  * serializations of DNS RRs. Also note the semantics are different from DNS zone file format, for example
  * regarding delegation (i.e. the RRs defined here have no effect on subdomains), which is probably nicer for
  * one-off mappings of domains to specific resources. Or in other words, this is supposed to be a drop-in
- * based alternative to /etc/hosts, not a one to DNS zone files. (The JSON format is also a lot more
+ * based alternative to /etc/hosts, not one to DNS zone files. (The JSON format is also a lot more
  * extensible to us, for example we could teach it to map certain lookups to specific DNS errors, or extend
  * it so that subdomains always get NXDOMAIN or similar).
  *
@@ -222,5 +222,4 @@ void manager_static_records_flush(Manager *m) {
 
         m->static_records = hashmap_free(m->static_records);
         m->static_records_stat = set_free(m->static_records_stat);
-        m->static_records_last = USEC_INFINITY;
 }