$ git clone -n https://src.fedoraproject.org/rpms/perl-String-Trim-More.git /var/lib/mock/f45-build-26373-617/root/chroot_tmpdir/scmroot/perl-String-Trim-More
Cloning into '/var/lib/mock/f45-build-26373-617/root/chroot_tmpdir/scmroot/perl-String-Trim-More'...
$ git fetch origin 766f666c146a57d67481bce3426853ae57e01649:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-String-Trim-More
 * [new ref]         766f666c146a57d67481bce3426853ae57e01649 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 766f666 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild