Dump fix script can be applied twice

Summary

See #60 (closed).

Focus

Test Environment

• Check out 4a34ffb9, run pytest dump_updates
• Check out latest commit in this branch, run test again

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dump_updates/2024-10-02.dump_fix_mariadb_10_6.sh

@@ -35,10 +35,10 @@ set -euo pipefail
 IFS=$'\n\t'
 
 script='
-s/Offset INT UNSIGNED) RETURNS varbinary(255)/HeadOffset INT UNSIGNED) RETURNS varbinary(255)/
+/^[[:blank:]]+Offset INT UNSIGNED/s/Offset INT UNSIGNED\) RETURNS varbinary\(255\)/HeadOffset INT UNSIGNED\) RETURNS varbinary(255)/
 s/LIMIT 1 OFFSET Offset/LIMIT 1 OFFSET HeadOffset/
 '
 
-sed -e "$script"
+sed -E -e "$script"
 
 unset script