Named Code Tags Are Unnamed With Edits

[A-Man]

For example:

C++-Code: #include <iostream> int main(int argc, char *argv[]) { return 1; }

Becomes:

Code:

#include <iostream>
int main(int argc, char *argv[])
{
    return 1;
}

when I edit.

I also noticed that sometimes new lines are spawned.

Edit: This only happens with quick edit.