1   $ hg init a

     2   $ cd a

     3   $ echo a > a

     4   $ hg ci -Am0

     5   adding a

     6   $ echo b > b

     7   $ hg ci -Am1

     8   adding b

     9   $ hg tag -r0 default

    10   warning: tag default conflicts with existing branch name

    11   $ hg log

    12   changeset:   2:30a83d1e4a1e

    13   tag:         tip

    14   user:        test

    15   date:        Thu Jan 01 00:00:00 1970 +0000

    16   summary:     Added tag default for changeset f7b1eb17ad24

    17   

    18   changeset:   1:925d80f479bb

    19   user:        test

    20   date:        Thu Jan 01 00:00:00 1970 +0000

    21   summary:     1

    22   

    23   changeset:   0:f7b1eb17ad24

    24   tag:         default

    25   user:        test

    26   date:        Thu Jan 01 00:00:00 1970 +0000

    27   summary:     0

    28   

    29   $ hg update 'tag(default)'

    30   0 files updated, 0 files merged, 2 files removed, 0 files unresolved

    31   $ hg parents

    32   changeset:   0:f7b1eb17ad24

    33   tag:         default

    34   user:        test

    35   date:        Thu Jan 01 00:00:00 1970 +0000

    36   summary:     0

    37   

    38   $ hg update 'branch(default)'

    39   2 files updated, 0 files merged, 0 files removed, 0 files unresolved

    40   $ hg parents

    41   changeset:   2:30a83d1e4a1e

    42   tag:         tip

    43   user:        test

    44   date:        Thu Jan 01 00:00:00 1970 +0000

    45   summary:     Added tag default for changeset f7b1eb17ad24

    46   

    47 

    48   $ cd ..