Wrong toc() message for nested timing

[kbzsl]

It is working well, when all the messages are defined in the toc() function.

tictoc::tic("T1")
tictoc::tic("T2")
Sys.sleep(1)
tictoc::toc()
#> T2: 1 sec elapsed
Sys.sleep(2)
tictoc::toc()
#> T1: 3.03 sec elapsed

But if one of the messages is not defined, the message order is not kept.

tictoc::tic("T1")
tictoc::tic()
Sys.sleep(1)
tictoc::toc()
#> T1: 1.03 sec elapsed
Sys.sleep(2)
tictoc::toc()
#> 3.08 sec elapsed

tictoc::tic("T1")
tictoc::tic()
tictoc::tic("T3")
tictoc::tic()
Sys.sleep(1)
tictoc::toc()
#> T3: 1.03 sec elapsed
Sys.sleep(2)
tictoc::toc()
#> T1: 3.06 sec elapsed
Sys.sleep(3)
tictoc::toc()
#> 6.11 sec elapsed
Sys.sleep(4)
tictoc::toc()
#> 10.15 sec elapsed

It looks like that the missing message (msg = NULL) is not registered correctly.

[benscarlson]

I can confirm this issue as well. Is there any fix for it? I would like to name some of my tic()'s (e.g. script execution time) but not others.