$ git clone -n https://src.fedoraproject.org/rpms/perl-VM-EC2-Security-CredentialCache.git /var/lib/mock/f45-build-27382-622/root/chroot_tmpdir/scmroot/perl-VM-EC2-Security-CredentialCache
Cloning into '/var/lib/mock/f45-build-27382-622/root/chroot_tmpdir/scmroot/perl-VM-EC2-Security-CredentialCache'...
$ git fetch origin b8016573db171cbd9f7fc3bf6855f49756d84356:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-VM-EC2-Security-CredentialCache
 * [new ref]         b8016573db171cbd9f7fc3bf6855f49756d84356 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b801657 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild