Pango doesn't compute cursor position properly when containing ideographic description characters
The title says it all. A character which is constituted with the ideographic description characters breaks up on cursor.
For example, IDS like ⿳雲⿲雲龍雲⿰龍龍 (U+2FF3 U+96F2 U+2FF2 U+96F2 U+9F8D U+96F2 U+2FF0 U+9F8D U+9F8D) looks like
though, when trying to move cursor on it, needing to press the left key 9 times to move left of them.
Edited by Akira TAGOH