$ git clone -n https://src.fedoraproject.org/rpms/perl-Web-Paste-Simple.git /var/lib/mock/f42-build-side-1-3499020-45964/root/chroot_tmpdir/scmroot/perl-Web-Paste-Simple
Cloning into '/var/lib/mock/f42-build-side-1-3499020-45964/root/chroot_tmpdir/scmroot/perl-Web-Paste-Simple'...
$ git fetch origin 894faf351f6f3172b5d2aa6ea70bff53b9d10cc8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Web-Paste-Simple
 * [new ref]         894faf351f6f3172b5d2aa6ea70bff53b9d10cc8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 894faf3 Fix creating users on Fedora < 42