Fixed OSC color reset without parameter->resets all colors - st - personal variant of st
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       ---
 (DIR) commit 7e8050cc621f27002eaf1be8114dee2497beff91
 (DIR) parent e5e959835b195c023d1f685ef4dbbcfc3b5120b2
 (HTM) Author: Hiltjo Posthuma <hiltjo@codemadness.org>
       Date:   Sun,  5 Feb 2023 13:29:35 +0100
       
       Fixed OSC color reset without parameter->resets all colors
       
       Adapted from (garbled) patch by wim <wim@thinkerwim.org>
       
       Additional notes: it should reset all the colors using xloadcols().
       To reproduce: set a different (theme) color using some escape code, then reset
       it:
       
               printf '\x1b]104\x07'
       
       Diffstat:
         M st.c                                |       4 +++-
       
       1 file changed, 3 insertions(+), 1 deletion(-)
       ---
 (DIR) diff --git a/st.c b/st.c
       @@ -1932,8 +1932,10 @@ strhandle(void)
                                if (p && !strcmp(p, "?")) {
                                        osc_color_response(j, 0, 1);
                                } else if (xsetcolorname(j, p)) {
       -                                if (par == 104 && narg <= 1)
       +                                if (par == 104 && narg <= 1) {
       +                                        xloadcols();
                                                return; /* color reset without parameter */
       +                                }
                                        fprintf(stderr, "erresc: invalid color j=%d, p=%s\n",
                                                j, p ? p : "(null)");
                                } else {