Automatically commit reference block after fork mode initialization#898
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When fork mode is initialized, the emulator now automatically commits an initial empty block to provide a valid reference block ID for transactions. This eliminates the need for users to manually call ExecuteAndCommitBlock() before submitting transactions. Previously, fork mode would initialize but leave the emulator in a state where it couldn't accept transactions until a reference block was manually committed. Tests had to work around this by explicitly committing a block. Changes: - Auto-commit initial reference block in NewEmulatorServer when ForkHost is set - Remove manual workaround from fork integration tests - Add logging for the committed reference block Fixes the issue where forked emulators were not immediately ready to accept transactions.
jribbink
requested review from
chasefleming,
janezpodhostnik,
mfbz and
peterargue
as code owners
mfbz
approved these changes
Nov 4, 2025
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Closes #899
Description
When fork mode is initialized, the emulator now automatically commits an initial empty block to provide a valid reference block ID for transactions. This eliminates the need for users to manually call ExecuteAndCommitBlock() before submitting transactions.
Previously, fork mode would initialize but leave the emulator in a state where it couldn't accept transactions until a reference block was manually committed. Tests had to work around this by explicitly committing a block.
Changes:
Fixes the issue where forked emulators were not immediately ready to accept transactions.
For contributor use:
masterbranchFiles changedin the GitHub PR explorer