git-gui (Win): make "Explore Working Copy" more robust

diff --git a/lib/mergetool.tcl b/lib/mergetool.tcl
index 8d1ee5b11d01496c608d639845b680c42dc8a0ef..3e1b42beb0d05f12a6fe7913aff14091cecac32c 100644 (file)
--- a/lib/mergetool.tcl
+++ b/lib/mergetool.tcl
@@ -23,13 +23,14 @@ This operation can be undone only by restarting the merge." \
        }
 }
 
-proc merge_stage_workdir {path w lno} {
+proc merge_stage_workdir {path {lno {}}} {
        global current_diff_path diff_active
+       global current_diff_side ui_workdir
 
        if {$diff_active} return
 
-       if {$path ne $current_diff_path} {
-               show_diff $path $w $lno {} [list do_merge_stage_workdir $path]
+       if {$path ne $current_diff_path || $ui_workdir ne $current_diff_side} {
+               show_diff $path $ui_workdir $lno {} [list do_merge_stage_workdir $path]
        } else {
                do_merge_stage_workdir $path
        }
@@ -87,7 +88,7 @@ proc merge_load_stages {path cont} {
        set merge_stages(3) {}
        set merge_stages_buf {}
 
-       set merge_stages_fd [eval git_read ls-files -u -z -- $path]
+       set merge_stages_fd [eval git_read ls-files -u -z -- {$path}]
 
        fconfigure $merge_stages_fd -blocking 0 -translation binary -encoding binary
        fileevent $merge_stages_fd readable [list read_merge_stages $merge_stages_fd $cont]