$ git clone -n https://src.fedoraproject.org/rpms/perl-Exception-Class-TryCatch.git /var/lib/mock/f45-build-23406-597/root/chroot_tmpdir/scmroot/perl-Exception-Class-TryCatch
Cloning into '/var/lib/mock/f45-build-23406-597/root/chroot_tmpdir/scmroot/perl-Exception-Class-TryCatch'...
$ git fetch origin 6ef5b97f74f6e2ee647d67aa1f8523e33d885daa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Exception-Class-TryCatch
 * [new ref]         6ef5b97f74f6e2ee647d67aa1f8523e33d885daa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6ef5b97 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild