revlog: reset _nodepos after strip
When using the pure revlog parser, _nodepos is used to keep track of the
position during index scanning in the non-cached cache. If it is out of
bounds, BaseIndexObject._fix_index will assert. Since strip can actually
remove the position scanned last, make sure to reset it. Add an
assertion in the place where the invariance is clearer.
Differential Revision: https://phab.mercurial-scm.org/D3188
BasedOnStyle: LLVM
IndentWidth: 8
UseTab: ForIndentation
BreakBeforeBraces: Linux
AllowShortIfStatementsOnASingleLine: false
IndentCaseLabels: false
AllowShortBlocksOnASingleLine: false
AllowShortFunctionsOnASingleLine: false
IncludeCategories:
- Regex: '^<'
Priority: 1
- Regex: '^"'
Priority: 2