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events: Allow revert on empty cache

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This commit is contained in:
Łukasz Magiera 2019-12-03 18:38:37 +01:00
parent 5810922441
commit f43ff07ab3
1 changed files with 1 additions and 1 deletions
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2
chain/events/tscache.go
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@ -62,7 +62,7 @@ func (tsc *tipSetCache) add(ts *types.TipSet) error {
func (tsc *tipSetCache) revert(ts *types.TipSet) error {
if tsc.len == 0 {
return xerrors.New("tipSetCache.revert: nothing to revert; cache is empty")
return nil // this can happen, and it's fine
}
if !tsc.cache[tsc.start].Equals(ts) {