Crash when entering text to TextInput which has maximum length set

Steps to reproduce:
-Focus TextInput which has maximum length set with maximumLength property.
-Enter text quickly with VKB. Type preedit texts which are cut according to maximum length when committed with space. Press also backspace sometimes. Continue typing for a while.

Expected result:
-Text is shown in TextInput and no crash occurs.

Actual result:
-Crash occurs after a while in QLineControl::removeSelectedText method.

Crash stack in comment.