[7.2.203] When reloading a buffer or doing anything else with a buffer that

[7.2.203] When reloading a buffer or doing anything else with a buffer that

Problem:    When reloading a buffer or doing anything else with a buffer that
            is not displayed in a visible window, autocommands may be applied
            to the current window, folds messed up, etc.

Solution:   Instead of using the current window for the hidden buffer use a
            special window, splitting the current one temporarily.

Patch 7.2.203