[PATCH] _git-checkout: do not call __git_commits twice

[Daniel Hahler <genml+zsh-workers@xxxxxxxxxx>]

From: Daniel Hahler <git@xxxxxxxxxx>

This makes branch_arg empty by default, to be used only for
__git_remote_branch_names.

'branches::__git_revisions' was used here, but that's the same as
tree_ish_arg='tree-ishs::__git_tree_ishs' - both call __git_commits.

Only tree_ish_arg will call __git-commits now.
---
 Completion/Unix/Command/_git | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/Completion/Unix/Command/_git b/Completion/Unix/Command/_git
index fb9cae1..b67e2bf 100644
--- a/Completion/Unix/Command/_git
+++ b/Completion/Unix/Command/_git
@@ -456,14 +456,13 @@ _git-checkout () {
       [[ $line[CURRENT] = -* ]] && return
       if (( CURRENT == 1 )) && [[ -z $opt_args[(I)--] ]]; then
         # TODO: Allow A...B
-        local branch_arg='branches::__git_revisions' \
+        local branch_arg='' \
               remote_branch_noprefix_arg='remote branches::__git_remote_branch_names_noprefix' \
               tree_ish_arg='tree-ishs::__git_tree_ishs' \
               file_arg='modified-files::__git_modified_files'
 
         if [[ -n ${opt_args[(I)-b|-B|--orphan|--detach]} ]]; then
           remote_branch_noprefix_arg=
-          tree_ish_arg=
           file_arg=
         elif [[ -n $opt_args[(I)--track] ]]; then
           branch_arg='remote-branches::__git_remote_branch_names'
@@ -471,7 +470,6 @@ _git-checkout () {
           tree_ish_arg=
           file_arg=
         elif [[ -n ${opt_args[(I)--ours|--theirs|-m|--conflict|--patch]} ]]; then
-          branch_arg=
           remote_branch_noprefix_arg=
         fi
 
-- 
2.4.0.dirty