Avoid adding \tcbcounter to global hash table (T-F-S#203)

tex/latex/tcolorbox/tcolorbox.sty

@@ -2077,36 +2077,35 @@
 }
 
 \def\tcb@proc@counter@autoanduse#1{%
-  \letcs\tcbcounter{tcb@cnt@#1}%
   \ifx\kvtcb@new@numberwithin\@empty%
-    \csxdef{the\tcbcounter}{\expandafter\noexpand\kvtcb@new@format{\tcbcounter}}%
+    \csxdef{the#1}{\expandafter\noexpand\kvtcb@new@format{#1}}%
   \else%
-    \@addtoreset{\tcbcounter}{\kvtcb@new@numberwithin}%
-    \csxdef{the\tcbcounter}{\expandafter\noexpand\csname the\kvtcb@new@numberwithin\endcsname .\expandafter\noexpand\kvtcb@new@format{\tcbcounter}}%
+    \@addtoreset{#1}{\kvtcb@new@numberwithin}%
+    \csxdef{the#1}{\expandafter\noexpand\csname the\kvtcb@new@numberwithin\endcsname .\expandafter\noexpand\kvtcb@new@format{#1}}%
   \fi%
   \ifx\kvtcb@new@freestyle\@empty%
   \else%
-    \csxdef{the\tcbcounter}{\kvtcb@new@freestyle}%
+    \csxdef{the#1}{\kvtcb@new@freestyle}%
   \fi%
-  \global\csletcs{thetcb@cnt@#1}{the\tcbcounter}%
-  \appto\tcb@new@colopt{,code={\letcs\tcbcounter{tcb@cnt@#1}\letcs\thetcbcounter{thetcb@cnt@#1}\stepcounter{\tcbcounter}\preto\kvtcb@phantom{\addtocounter{\tcbcounter}{-1}\refstepcounter{\tcbcounter}}}}%
+  \global\csletcs{the#1}{the#1}%
+  \appto\tcb@new@colopt{,code={\letcs\tcbcounter{#1}\letcs\thetcbcounter{the#1}\stepcounter{\tcbcounter}\preto\kvtcb@phantom{\addtocounter{\tcbcounter}{-1}\refstepcounter{\tcbcounter}}}}%
 }
 
 \def\tcb@proc@counter@auto#1{%
-  \newcounter{tcb@cnt@#1}%
-  \csxdef{tcb@cnt@#1}{tcb@cnt@#1}%
+  \newcounter{#1}%
+  \csxdef{#1}{#1}%
   \tcb@proc@counter@autoanduse{#1}%
 }
 
 \def\tcb@proc@counter@use#1{%
-  \csxdef{tcb@cnt@#1}{\kvtcb@new@counter}%
+  \csxdef{#1}{\kvtcb@new@counter}%
   \tcb@proc@counter@autoanduse{#1}%
 }
 
 \def\tcb@proc@counter@from#1{%
-  \csxdef{tcb@cnt@#1}{\kvtcb@new@counter}%
-  \global\csletcs{thetcb@cnt@#1}{the\kvtcb@new@counter}%
-  \appto\tcb@new@colopt{,code={\letcs\tcbcounter{tcb@cnt@#1}\letcs\thetcbcounter{thetcb@cnt@#1}\stepcounter{\tcbcounter}\preto\kvtcb@phantom{\addtocounter{\tcbcounter}{-1}\refstepcounter{\tcbcounter}}}}%
+  \csxdef{#1}{\kvtcb@new@counter}%
+  \global\csletcs{the#1}{the\kvtcb@new@counter}%
+  \appto\tcb@new@colopt{,code={\letcs\tcbcounter{#1}\letcs\thetcbcounter{the#1}\stepcounter{\tcbcounter}\preto\kvtcb@phantom{\addtocounter{\tcbcounter}{-1}\refstepcounter{\tcbcounter}}}}%
 }
 
 \def\tcb@proc@counter@no#1{%
@@ -2115,7 +2114,7 @@
 
 \long\def\tcb@proc@options@init#1#2{%
   \tcbset{new/.cd,reset@new,#1}%
-  \tcb@proc@counter{#2}%
+  \tcb@proc@counter{tcb@cnt@#2}%
   \iftcb@resetcounteronoverlays%
     \ifcsname resetcounteronoverlays\endcsname%
       \ifcsname tcb@cnt@#2\endcsname%