fixes #11118

lib/system/excpt.nim

@@ -342,6 +342,9 @@ proc raiseExceptionAux(e: ref Exception) =
   if globalRaiseHook != nil:
     if not globalRaiseHook(e): return
   when defined(cpp) and not defined(noCppExceptions):
+    if e == currException:
+      {.emit: "throw;".}
+    else:
       pushCurrentException(e)
       raiseCounter.inc
       if raiseCounter == 0:

tests/cpp/tcppraise.nim

@@ -5,6 +5,9 @@ bar
 Need odd and >= 3 digits##
 baz
 caught
+--------
+Triggered raises2
+Raising ValueError
 '''
 """
 
@@ -45,3 +48,24 @@ try:
 finally:
   for foobar in strs:
     discard
+
+
+# issue #11118
+echo "--------"
+proc raises() =
+  raise newException(ValueError, "Raising ValueError")
+
+proc raises2() =
+  try:
+    raises()
+  except ValueError as e:
+    echo "Triggered raises2"
+    raise e
+
+try:
+  raises2()
+except:
+  echo getCurrentExceptionMsg()
+  discard
+
+doAssert: getCurrentException() == nil