$ git clone -n https://src.fedoraproject.org/rpms/perl-File-NFSLock.git /var/lib/mock/f45-build-23585-598/root/chroot_tmpdir/scmroot/perl-File-NFSLock
Cloning into '/var/lib/mock/f45-build-23585-598/root/chroot_tmpdir/scmroot/perl-File-NFSLock'...
$ git fetch origin 5e7f0f2e9d82e7a1475f48cc19efefabf5fe57bc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-File-NFSLock
 * [new ref]         5e7f0f2e9d82e7a1475f48cc19efefabf5fe57bc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5e7f0f2 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild