repeat-utils functions can't cancel themselves

[lethosor]

This was pointed out by Atkana on the forums:

local blah = 1
local id = "foo"
local repeatUtil = require 'repeat-util'

local function doStuff()
    print("Blah: " .. blah)
    blah = blah +1
    print("Blah is now " .. blah)
    if blah > 10 then
        print("Blah is more than 10. Stopping.")
        print("Has supposedly cancelled = " .. tostring(repeatUtil.cancel(id)))
    end
end

repeatUtil.scheduleEvery(id,50,"frames",doStuff)

This doesn't work because repeat-utils schedules the next call of doStuff() after doStuff() returns, regardless of what doStuff() does. Scheduling it before doStuff() could result in error message spam, but tracking calls to cancel() and avoiding rescheduling doStuff() if it cancelled itself could work.

[expwnent]

Yup, that's bad. Should be a simple fix. I'll try to fix it today.

[lethosor]

Fixed in #1131