diff -uNr at-3.2.1/panic.c at-3.2.1.mod/panic.c
--- at-3.2.1/panic.c	2019-08-04 15:16:16.000000000 +0300
+++ at-3.2.1.mod/panic.c	2020-01-02 20:33:14.107959511 +0200
@@ -57,9 +57,9 @@
  */
     fprintf(stderr, "%s: %s\n", namep, a);
     if (fcreated) {
-	setregid(real_gid, effective_gid);
+	//setregid(real_gid, effective_gid);
 	unlink(atfile);
-	setregid(effective_gid, real_gid);
+	//setregid(effective_gid, real_gid);
     }
 
     exit(EXIT_FAILURE);
@@ -79,9 +79,9 @@
 
     perror(buf);
     if (fcreated) {
-        setregid(real_gid, effective_gid);
+        //setregid(real_gid, effective_gid);
 	unlink(atfile);
-        setregid(effective_gid, real_gid);
+        //setregid(effective_gid, real_gid);
     }
 
     exit(EXIT_FAILURE);