$ git clone -n https://src.fedoraproject.org/rpms/perl-AnyEvent-WebSocket-Client.git /var/lib/mock/f45-build-21671-587/root/chroot_tmpdir/scmroot/perl-AnyEvent-WebSocket-Client
Cloning into '/var/lib/mock/f45-build-21671-587/root/chroot_tmpdir/scmroot/perl-AnyEvent-WebSocket-Client'...
$ git fetch origin 2c74e569f957832190ccd857ba5921527b897a23:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-AnyEvent-WebSocket-Client
 * [new ref]         2c74e569f957832190ccd857ba5921527b897a23 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2c74e56 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild