Please describe the problem:
On my system, a clock applet displays the date and time in one line for a panel
size up to 48 pixels and in two lines for a for a panel size of 49+ pixels. My
panel size is set to 48 pixels, so the clock applet displays one line. However,
if I change e.g. the hour format in the clock applet preferences from 12 to 24
hours, the clock applet will immediately use two lines. Similarly, if I increase
the panel size until the clock applet uses two lines and then decrease it again,
the clock applet will still use two lines for any panel size between 37 and 48.
In both cases, this display property is not sticky: the clock applet will again
use one line if gnome-panel is restarted.

Steps to reproduce:
1. create a horizontal panel with a size between 37 and 48 pixels (the
problematic sizes probably depend on the default font sizes on your system)
2. add a clock applet to this panel
3. change hour format from 12 to 24 hours or vice versa


Actual results:
the display immediatly uses two lines instead of one, when the hour format is
changed

Expected results:
no change in the text layout. whether one or two lines are used for date and
time display should depend on the same panel sizes during applet initialization
and event-triggered update.

Does this happen every time?
yes

Other information:
using the Gnome packages shipped with Ubuntu 5.10 "Breezy Badger"