Well in theory some one could have.
If you opened any example, or the lazarus project itself, then you would open a lpi/lps file that comes with lazarus.
I haven't checked all of them, so I do not know if they are all clean.
Only that alone wouldn't be enough. Because if you close the project and open yours, then the breakpoints will be removed.
Of course, if there was a bug, and a breakpoint survived between 2 projects....
But how likely is that?
If you did open an example or any lazarus include project, then check there first.