When I first open an existing document the input line is too narrow and cuts off the bottom of the text.  If I click the button to open up multi-line input mode, and then click it again to return to single-line input mode, it re-sized the line to the correct size, and works OK from that point on.

My system is set to run at the monitor's correct dpi of 105, not the default 96 dpi that everyone at libreoffice seems to use and test against.  I've had problems in the past with openoffice not adjusting the input line for dpi other than 96 in the past, and it appears the problem as resurfaced.

It appears that that code to make the proper adjustment already exists and works properly when it is applied (ie. after making some change that triggers a refresh like opening and closing multi-line edi), but someone forgot to trigger it on initial program open and/or file load.