Created attachment 84520 [details]
the document used to test the bug

after pasting text on multiline selection and if the text is smaller than the selection, the text who was on the first line remains as "ghost text" (text seems drawed in the background without the ability to being selected).
If the selection select all the first line, the problem doesn't appear.
The ghost text disappear when i make a new line or if i press CTRL + MAJ + R .

step to reproduce:
1.produce a text which take multiple line (text can contains white space
2.select a part into the text (which does not include the beginnig of the first line)
3.paste a text smaller than the first line 
4.a ghost text remains at the first line after the pasted text