Philippe 01/10/2020: bugfix: initialize XCLDFR and XRAINFR

(cherry picked from commit b584a9ed)

src/MNH/ini_modeln.f90

@@ -839,8 +839,8 @@ ELSE
 END IF
 !
 IF (NRR>1) THEN
-  ALLOCATE(XCLDFR(IIU,IJU,IKU))
-  ALLOCATE(XRAINFR(IIU,IJU,IKU))
+  ALLOCATE(XCLDFR(IIU,IJU,IKU));  XCLDFR (:, :, :) = 0.
+  ALLOCATE(XRAINFR(IIU,IJU,IKU)); XRAINFR(:, :, :) = 0.
 ELSE
   ALLOCATE(XCLDFR(0,0,0))
   ALLOCATE(XRAINFR(0,0,0))