timing diagram initial concise state

[arnaudrichard]

Describe the bug
In timing diagram, the initial state does not display correctly concise state defined as a line with "{-}"

To Reproduce

@startuml
concise "Web User" as WU
'Following is bugged:
WU is {-} '

'Following is okay:
@0
WU is {-}
@enduml

Expected behavior
The diagram should start with a line

Screenshots
Diagram generated with plantuml.com server:

[The-Lum]

Hi all,

[This is an Issue Review] 👀
This is now fixed on V1.2024.5.

• Thanks @arnaudrichard for the report.
• Thanks PlantUML team and @arnaudroques for your work.

Regards.