AMR at inflow not working

[marchdf]

Having AMR levels touch an inflow BC leads to spurious velocity at the AMR corners. This input file illustrates the issue: freestream-amr.inp.txt. Inflow at xlo and ylo with vx = vy = 1.0.

This is probably related to #174 as well.

[marchdf]

Notes from debugging:

• Setting incflo.do_initial_proj = 0 "solves" the issue
• So does commenting out L353 (nodal_projector->project(options.rel_tol, options.abs_tol); in incflo_apply_nodal_projection.cpp
• Printing BC values seems like they are being set correctly
• Increasing verbosity shows that the initial projection is clearly doing something strange:

L-inf norm summary: before projection
..............................................................................
Level 0
  velocity                           0                   1                   0
  gp                                 0                   0                   0

Level 1
  velocity                           0                   1                   0
  gp                                 0                   0                   0
..............................................................................


  Nodal_projection               6           10.66666667       3.186236706e-06

L-inf norm summary: after projection
..............................................................................
Level 0
  velocity                0.4114862791        0.9991017265      1.77245633e-09
  gp                      0.4114862791        0.4158892159      1.77245633e-09

Level 1
  velocity                0.7211184444        0.9973798597     4.089097209e-09
  gp                      0.7211184444        0.5491720972     4.089097209e-09
..............................................................................