perf(git): minor performance cleanups

ftplugin/gitlog.lua

@@ -2,8 +2,12 @@ local cr = vim.api.nvim_replace_termcodes("<CR>", true, false, true)
 
 vim.keymap.set("n", "<CR>", function()
     local worktree = vim.b.git_worktree
+    -- Anchor past the leading graph chars (matches the leading sha column,
+    -- not any hex word that happens to appear later in the subject).
     local sha = worktree
-        and vim.api.nvim_get_current_line():match("(%x%x%x%x%x%x%x+)")
+        and vim.api
+            .nvim_get_current_line()
+            :match("^[*|/\\_ ]*(%x%x%x%x%x%x%x+)")
     if sha then
         require("git.show").open_commit(worktree, sha)
     else