esc directly after creation of an auto-indented line does not remove whitespace

[davea1]

While typing text in insert mode with the auto_indent setting enabled, Esc immediately following the creation of a new auto-indented line (via Enter/Return) will leave behind whitespace.

With Vim, all such whitespace is removed as soon as Esc is hit, leaving only a blank line.

This issue is related to: #230