Reporting small bug - sorry for poor English:
SQL Developer 19.2.1 - SQL Worksheet or Code Editor - I'm typing a few lines of text - for example:
aaa
bbb
ccc
ddd
next in menu I'm checking Edit -> Block selection and in editor I'm placing multiple cursors at the beginning of each line and I'm starting typing - for example "123".
Text "123" appears at the beginning of each line - except the first one, where it appears backwards:
321aaa
123bbb
123ccc
123ddd
Next I'm pressing 3 times BACKSPACE - previously entered text "123" disappears, again except the first line, where nothing happens:
321aaa
bbb
ccc
ddd
All this happens when the first line with muliti-cursor is the first line in editor.
Dariusz Zawistowski