Description:
when conky is running with double buffer, I am missing all text. This problem is with version 1.7.1-2.
after downgrade to 1.7.0-3 there is no problem.

Additional info:
* package version(s)
1.7.1-2
* config and/or log files etc.

important part of my .conkyrc:
# .conkyrc by crimeboy
# simple rc for use in laptops
# external shell scripts: ipex and bat
# font name: anorexia artiwiz font
# date: 16mar07
own_window yes
own_window_type override
own_window_transparent yes
own_window_type desktop
own_window_hints undecorated,below,sticky,skip_taskbar,skip_pager

# Use double buffering (reduces flicker, may not work for everyone)
#double_buffer yes

# fiddle with window
use_spacer yes
use_xft yes



# Update interval in seconds
update_interval 1.0

# Minimum size of text area
# minimum_size 250 5

# Draw shades?
draw_shades no

# Text stuff
draw_outline no
draw_borders no
#font anorexia
font snap

uppercase no # set to yes if you want all text to be in uppercase

# Stippled borders?
stippled_borders 3

# border margins
border_margin 2

# border width
border_width 1

# Default colors and also border colors, grey90 == #e5e5e5
default_color grey

own_window_colour brown
own_window_transparent yes

# Text alignment, other possible values are commented
alignment top_left
#alignment top_right
#alignment bottom_left
#alignment bottom_right

# Gap between borders of screen and text
gap_x 10
gap_y 5

# stuff after 'TEXT' will be formatted on screen

#${alignr}${color 878772}wan:$color ${execi 1 ipex 2>/dev/null}$color



Steps to reproduce: