With the latest changes in revision 12099, line-height defaults to 0% if Inkscape is launched with fresh preferences (e.g. after resetting the prefs system by removing "$XDG_CONFIG_HOME/inkscape/preferences.xml"):
style="fill:black;fill-opacity:1;stroke:none;font-family:sans-serif;font-style:normal;font-weight:normal;font-size:40px;line-height:0%;letter-spacing:0px;word-spacing:0px"
Not reproduced with r12098 and earlier revisions (default line-height was 125%):
style="fill:black;fill-opacity:1;stroke:none;font-family:sans-serif;font-style:normal;font-weight:normal;font-size:40px;line-height:125%;letter-spacing:0px;word-spacing:0px"
With the latest changes in revision 12099, line-height defaults to 0% if Inkscape is launched with fresh preferences (e.g. after resetting the prefs system by removing "$XDG_CONFIG_ HOME/inkscape/ preferences. xml"):
Not reproduced with r12098 and earlier revisions (default line-height was 125%):