OCCT

restore [locate_data_file bug29692_s26.brep] s

# rebuild the compound ensuring that each material is valid
compound materials

foreach c [explode s] {
  set ss [explode $c]
  if {[llength $ss] > 1} {
    eval makeconnected r $ss
    add r materials
  } else {
    add $ss materials
  }
}

eval makeconnected connected [explode materials]

checkshape connected
if {![regexp "OK" [bopcheck connected]]} {
  puts "Error: Unable to make connected"
}
checknbshapes connected -vertex 44 -edge 80 -wire 49 -face 47 -shell 9 -solid 9 -t
checkprops connected -s 1.11312e+007 -v 3.0528e+008

cmakeperiodic result -x 2400 -y 240

checkshape result
# no new splits expected
checknbshapes result -ref [nbshapes connected -t] -t
checkprops result -equal connected