patch 8.0.1237: ":set scroll&" often gives an error commit https://github.com/vim/vim/commit/af2d20c6285c1d2973e3d9b5e8f727e3ed180493 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Oct 29 15:26:57 2017 +0100 patch 8.0.1237: ":set scroll&" often gives an error Problem: ":set scroll&" often gives an error. Solution: Don't use a fixed default value, use half the window height. Add a test. (Ozaki Kiichi, closes #2104)

Results of test68:


{
a
b
}


{
a  
b  

a  
b
}


{
a



a


}


{
a b
#a b

a b
#a b
}


{
  1 a
    b
# 1 a
#   b
}


{

  x a
    b_
    c

}


{
# 1 a
#   b
}


{
# x a
#   b
}


{ 1aa ^^2bb }


/* abc def ghi jkl 
 *    mno pqr stu 
 *    vwx yz
 */


# 1 xxxxx
#   foobar