$ git clone -n https://src.fedoraproject.org/rpms/perl-Crypt-ECB.git /var/lib/mock/f45-build-22633-593/root/chroot_tmpdir/scmroot/perl-Crypt-ECB
Cloning into '/var/lib/mock/f45-build-22633-593/root/chroot_tmpdir/scmroot/perl-Crypt-ECB'...
$ git fetch origin 5dbc0325e712693204c7f6426ccb532c2f158475:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Crypt-ECB
 * [new ref]         5dbc0325e712693204c7f6426ccb532c2f158475 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5dbc032 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild