Add: 00000001 [X], <config>
Status: 1 nodes, 1 undos, 0 redos
  Node changes:
    00000001 [X]: [A  tT      dD  ], <config>, Base: {A:i4, B:b?, C:i8?}*
###
*** Change type and add a type-preserving extra formula
Cfg: 00000001 [X], <config>
Fma: 00000001 [X], <config>
  New 0: [0:this->Filter(A < 10u1)]
Status: 1 nodes, 2 undos, 0 redos
  Node changes:
    00000001 [X]: [  FtT   b cdD  ], <config>, Base: {A:u8?, B:b, C:i8}*, Extra[0]: {A:u8?, B:b, C:i8}*
###
