GitInput: deal with undefined deepClone

Dependencies

• [2] 34SOPSVF Allow to configure the timeout value for the GitInput plugin in different places.
• [3] 7EGUBBRQ Lock paths in the scm cache
• [4] JYXWIQG4 Include the project and jobset names in the configuration blocks
• [*] JAH3UPWA Support revision control systems via plugins

Change contents

• replacement in src/lib/Hydra/Plugin/GitInput.pm at line 37
  [2.297]→[2.297:337](∅→∅)
  − if (index($deepClone, "=") != -1) {
  [2.297]

  [2.337]
  + if (defined($deepClone) && index($deepClone, "=") != -1) {