$ git clone -n https://src.fedoraproject.org/rpms/perl-Test-Exit.git /var/lib/mock/f45-build-26646-618/root/chroot_tmpdir/scmroot/perl-Test-Exit
Cloning into '/var/lib/mock/f45-build-26646-618/root/chroot_tmpdir/scmroot/perl-Test-Exit'...
$ git fetch origin c061df0e68d5c0ea0be9d5f1b49f119e088fa56f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test-Exit
 * [new ref]         c061df0e68d5c0ea0be9d5f1b49f119e088fa56f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c061df0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild