$ git clone -n https://src.fedoraproject.org/rpms/perl-Encode-IMAPUTF7.git /var/lib/mock/f45-build-23367-597/root/chroot_tmpdir/scmroot/perl-Encode-IMAPUTF7
Cloning into '/var/lib/mock/f45-build-23367-597/root/chroot_tmpdir/scmroot/perl-Encode-IMAPUTF7'...
$ git fetch origin 510084b1d09fa761cbf8f80c1ca46fd09a3e19f4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Encode-IMAPUTF7
 * [new ref]         510084b1d09fa761cbf8f80c1ca46fd09a3e19f4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 510084b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild