$ git clone -n https://src.fedoraproject.org/rpms/perl-Test-File-ShareDir.git /var/lib/mock/f39-build-1439581-32268/root/chroot_tmpdir/scmroot/perl-Test-File-ShareDir
Cloning into '/var/lib/mock/f39-build-1439581-32268/root/chroot_tmpdir/scmroot/perl-Test-File-ShareDir'...
$ git fetch origin 1c4c86b0592f111c57ad8cbcb32b57a2a7077c70:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test-File-ShareDir
 * [new ref]         1c4c86b0592f111c57ad8cbcb32b57a2a7077c70 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1c4c86b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild