Is there something wrong with the number parser for Luup variables/events?

Plugins & Plugin Development General Plugin Discussion
1

While implementing Luup events for local dose rates (see http://forum.micasaverde.com/index.php?topic=5466.0), I came across a strange phenomenon:

UPnP variable [tt]DoseRateCosmical[/tt] is defined as [tt]dataType number[/tt].

Scene has event ‘Cosmical dose rate goes above’ [0.1] ‘microSv/h’.

Hook for [tt]DoseRateCosmical[/tt] seems to be OK.

Setting [tt]DoseRateCosmical[/tt] to [tt]0.9[/tt] doesn’t trigger the event.

Setting [tt]DoseRateCosmical[/tt] to [tt]1.1[/tt] does trigger the event …

According to http://forum.micasaverde.com/index.php?topic=5988.msg35515#msg35515 [tt]number[/tt] is a 8 byte float.

Edit:
How to reproduce:

[ul][li]Install DAD V0.13 BETA from http://forum.micasaverde.com/index.php?topic=5466.0.[/li]
[li]Create a scene with event Cosmical dose rate goes above’ [0.1] ‘microSv/h’.[/li][/ul]

luup.variable_set( "urn:upnp-ap15e-com:serviceId:DAD1", 'DoseRateCosmical'    , '1.99', DAD_ID )

does trigger the event, whereas

luup.variable_set( "urn:upnp-ap15e-com:serviceId:DAD1", 'DoseRateCosmical'    , '0.99', DAD_ID )

doesn’t trigger the event.