Resuming a non-existed session freezes 1.4.9 release

[romusz]

Description

When opencode 1.4.9 is started with non-existent it freezes, earlier releases opened undefined session which was also problematic since it didn't give any indication until opencode exited and printed:
Resume: opencode -s undefined

Plugins

No response

OpenCode version

1.4.9

Steps to reproduce

opencode -s

Screenshot and/or share link

No response

Operating System

macOS 26.4

Terminal

No response