I'm not able to rename local variables if new name is longer more than one character from original name. Please check below code (please also consider tabulator indent on begin both lines inside function body):
void foo()
{
	QString sString = "string";
	sString.replace('s', 'S');
}

Reproducible: Always

Steps to Reproduce:
1. move cursor on begin of declaration string "sString" (before 's')
2. start typing new characters, for example 123
3. typing every next character please look at right bottom corner of editor, where  the Rename assistant is displayed

Actual Results:  
as output string always will be "1sString"

Expected Results:  
output string should looks like this: "123sString"

Please note that, the position in the name of variable where you start typing doesn't matter. This might be position after first character, after second character or even after last character. Always result will be the same. Into output string is inserted only one character! Of course pressing Alt+1 put only such string, so in this example: "1sString". 

This bug made that we are not able rename variable if we want to update it with more than one character.

There is also "unpleasant" side effect.
The side effect is that, on begin of renamed string are inserted several spaces. For me it was 6 spaces. Please consider that I have set indention as tabulator (length 4 characters). I can create new bug report for this "side effect" if you want. I'm not sure how close this is related with bug described before.

Kate, KTextEditor, KDevelop and KDevplatform cloned at 04.11.2015