drbbdup does not restore regs at last instruction of a rep-expanded block

Describe the bug drbbdup does not restore regs at last instruction of a rep-expanded block

To Reproduce See https://github.com/DynamoRIO/dynamorio/pull/5717#issuecomment-1457764812

Expected behavior regs should be restored at the end of the block

Screenshots or Pasted Text

Versions

• What version of DynamoRIO are you using?
  • cronbuild-9.91.19426
• Does the latest build from https://github.com/DynamoRIO/dynamorio/releases solve the problem?
  • No
• What operating system version are you running on? ("Windows 10" is not sufficient: give the release number.)
• Is your application 32-bit or 64-bit?
  • The failure was seen in Linux x86-32, but the problem could happen on other platforms too depending on application/instrumentation code

Additional context