one-line change that should fix stbility issues in periodicity for mobing IBs

Author: danieljvickers

src/simulation/m_ibm.fpp

@@ -201,6 +201,7 @@ contains
                 k = gp%loc(2)
                 l = gp%loc(3)
                 patch_id = ghost_points(i)%ib_patch_id
+                call s_decode_patch_periodicity(patch_id, patch_id)
 
                 ! Calculate physical location of GP
                 if (p > 0) then