fix: rootKey empty check by len equals 0

[mmsqe]

this change should not have been included in e46665c71763e5b5c77ce7215e3b7f80167a3951

[mmsqe]

@tac0turtle Is it possible that we backport this to v0.20.x?

[tac0turtle]

@tac0turtle Is it possible that we backport this to v0.20.x?

i dont see this being part of v0.20. I might be looking the wrong place, are you able to see it?

[mmsqe]

@tac0turtle Is it possible that we backport this to v0.20.x?

i dont see this being part of v0.20. I might be looking the wrong place, are you able to see it?

Yes, https://github.com/cosmos/iavl/blob/release/v0.20.x/iterator.go#L272

[julienrbrt]

If this gets backported in v0.20, we should backport it in v1.0.0 and v0.21 as well.

[julienrbrt]

@mergifyio backport release/v1.x.x

[mergify[bot]]

backport release/v1.x.x

✅ Backports have been created

* [#809 fix: rootKey empty check by len equals 0 (backport #801)](https://github.com/cosmos/iavl/pull/809) has been created for branch `release/v1.x.x` but encountered conflicts

[tac0turtle]

@mergifyio backport release v0.20.x

[mergify[bot]]

backport release v0.20.x

❌ No backport have been created

* Backport to branch `release` failed GitHub error: ```Branch not found``` * Backport to branch `v0.20.x` failed GitHub error: ```Branch not found```

[tac0turtle]

@mergifyio backport release/v0.20.x

[mergify[bot]]

backport release/v0.20.x

✅ Backports have been created

* [#810 fix: rootKey empty check by len equals 0 (backport #801)](https://github.com/cosmos/iavl/pull/810) has been created for branch `release/v0.20.x` but encountered conflicts

[julienrbrt]

@Mergifyio backport release/v0.21.x

[mergify[bot]]

backport release/v0.21.x

✅ Backports have been created

* [#811 fix: rootKey empty check by len equals 0 (backport #801)](https://github.com/cosmos/iavl/pull/811) has been created for branch `release/v0.21.x` but encountered conflicts