[bugfix] fixes #11524

tests/destructor/tgcdestructors.nim

@@ -6,7 +6,8 @@ ha
 @["arg", "asdfklasdfkl", "asdkfj", "dfasj", "klfjl"]
 @[1, 2, 3]
 @["red", "yellow", "orange", "rtrt1", "pink"]
-30 30'''
+a: @[4, 2, 3]
+35 35'''
 """
 
 import allocators
@@ -169,6 +170,14 @@ proc testWarm =
 
 testWarm()
 
+proc mutConstSeq() =
+  # bug #11524
+  var a = @[1,2,3]
+  a[0] = 4
+  echo "a: ", a
+
+mutConstSeq()
+
 #echo s
 let (a, d) = allocCounters()
 discard cprintf("%ld %ld\n", a, d)