Found the culprit. It's uim-xim which I use for urxvt uim support. To reproduce install uim-xim and uim-m17nlib, create the file ~/.uim with the following contents:
(require-module "m17nlib") (define default-widget_m17nlib_input_mode 'action_m17nlib_on)
and run uim-xim. Then run Inkscape and try to reproduce the bug. I'm not sure whether it's Inkscape or uim bug because other apps work fine.
Found the culprit. It's uim-xim which I use for urxvt uim support. To reproduce install uim-xim and uim-m17nlib, create the file ~/.uim with the following contents:
(require-module "m17nlib") widget_ m17nlib_ input_mode 'action_m17nlib_on)
(define default-
and run uim-xim. Then run Inkscape and try to reproduce the bug. I'm not sure whether it's Inkscape or uim bug because other apps work fine.