2.6.0 breaks serving *.htm.gz

[kolos]

9f2cfb8 breaks handling files uploaded as *.htm.gz

Example:
File uploaded as: dashboard.htm.gz
Http request: http://server/dashboard.htm
Actually served

• Before: dashboard.htm OR dashboard.htm.gz => file found
• After: dashboard.htm OR dashboard.html OR dashboard.html.gz => file not found

Propose:
only "/" path should be rewritten as /index.htm or /index.html or /index.htm.gz or /index.html.gz (whichever exists)