gui/gm-editor opens incorrect array when using mouse on bottom of a list

[xBlackTalonX]

For example, in gui/gm-editor world.worldgen.worldgen_parms, when clicking in succession to view,

elevation_frequency
rain_frequency
drainage_frequency
savagery_frequency
temperature_frequency
volcanism_frequency

My click to view drainage_frequency will show the values from the savagery_frequency array. Exiting this view with right-click and clicking drainage_frequency a second time will show the accurate values.

Presumably this is related to the auto-scrolling occurring. For me it occurs when the item clicked is within the bottom five entries of the viewport (1920x1080).