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        $ cat << EOF >> $HGRCPATH

        > [extensions]

        > rebase=

        > [alias]

        > tglog = log -G -T "{rev} '{desc}'\n"

        > EOF

        $ hg init

        $ echo a > a; hg add a; hg ci -m a

        $ echo b > b; hg add b; hg ci -m b1

        $ hg up 0 -q

        $ echo b > b; hg add b; hg ci -m b2 -q

        $ hg tglog

        @  2 'b2'

        |

        | o  1 'b1'

        |/

        o  0 'a'

      With rewrite.empty-successor=skip, b2 is skipped because it would become empty.

        $ hg rebase -s 2 -d 1 --config rewrite.empty-successor=skip --dry-run

        starting dry-run rebase; repository will not be changed

        rebasing 2:6e2aad5e0f3c "b2" (tip)

        note: not rebasing 2:6e2aad5e0f3c "b2" (tip), its destination already has all its changes

        dry-run rebase completed successfully; run without -n/--dry-run to perform this rebase

      With rewrite.empty-successor=keep, b2 will be recreated although it became empty.

        $ hg rebase -s 2 -d 1 --config rewrite.empty-successor=keep

        rebasing 2:6e2aad5e0f3c "b2" (tip)

        note: created empty successor for 2:6e2aad5e0f3c "b2" (tip), its destination already has all its changes

        saved backup bundle to $TESTTMP/.hg/strip-backup/6e2aad5e0f3c-7d7c8801-rebase.hg

        $ hg tglog

        @  2 'b2'

        |

        o  1 'b1'

        |

        o  0 'a'

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				$ cat << EOF >> $HGRCPATH
				> [extensions]
				> rebase=
				> [alias]
				> tglog = log -G -T "{rev} '{desc}'\n"
				> EOF

				$ hg init

				$ echo a > a; hg add a; hg ci -m a
				$ echo b > b; hg add b; hg ci -m b1
				$ hg up 0 -q
				$ echo b > b; hg add b; hg ci -m b2 -q

				$ hg tglog
				@ 2 'b2'
				\|
				\| o 1 'b1'
				\|/
				o 0 'a'


				With rewrite.empty-successor=skip, b2 is skipped because it would become empty.

				$ hg rebase -s 2 -d 1 --config rewrite.empty-successor=skip --dry-run
				starting dry-run rebase; repository will not be changed
				rebasing 2:6e2aad5e0f3c "b2" (tip)
				note: not rebasing 2:6e2aad5e0f3c "b2" (tip), its destination already has all its changes
				dry-run rebase completed successfully; run without -n/--dry-run to perform this rebase

				With rewrite.empty-successor=keep, b2 will be recreated although it became empty.

				$ hg rebase -s 2 -d 1 --config rewrite.empty-successor=keep
				rebasing 2:6e2aad5e0f3c "b2" (tip)
				note: created empty successor for 2:6e2aad5e0f3c "b2" (tip), its destination already has all its changes
				saved backup bundle to $TESTTMP/.hg/strip-backup/6e2aad5e0f3c-7d7c8801-rebase.hg

				$ hg tglog
				@ 2 'b2'
				\|
				o 1 'b1'
				\|
				o 0 'a'