Update the regexp to avoid catastrophic backtracking#1809

Merged

troosan merged 2 commits intoPHPOffice:developfrom

juzser:dev-master

Feb 7, 2021

Commits on Jan 7, 2020

Fix: CloneBlock regexp for different regexp engine with xml line-drop
juzser
committed

Commits on Jan 21, 2020

Fix: Catastrophic Backtracking RegExp
juzser
committed