Fork of Mercurial SCM (https://mercurial.selenic.com/) with additions:
- revision duplicates collision resolves
- sparse fixes:
-- purge cleanup all out-of-sparse (issue5626)
-- merge only changes in sparse (issue6521)
-- dirstat refresh on sparse conf changes
-- `share` comand suport sparse
-- ignore subrepos out of sparse
- command `debugrevlog` enhances
- #6745 feature : VFS failure on OS-impossible names now just drop file of conflict.