fixes #4863

tests/generics/tstatictalias.nim

@@ -0,0 +1,20 @@
+discard """
+  output: '''G:0,1:0.1
+G:0,1:0.1
+H:1:0.1'''
+"""
+
+type
+  G[i,j:static[int]] = object
+    v:float
+  H[j:static[int]] = G[0,j]
+proc p[i,j:static[int]](x:G[i,j]) = echo "G:",i,",",j,":",x.v
+proc q[j:static[int]](x:H[j]) = echo "H:",j,":",x.v
+
+var
+  g0 = G[0,1](v: 0.1)
+  h0:H[1] = g0
+p(g0)
+p(h0)
+q(h0)
+# bug #4863