$ git clone -n https://src.fedoraproject.org/rpms/perl-Gtk2-TrayIcon.git /var/lib/mock/f45-build-23841-599/root/chroot_tmpdir/scmroot/perl-Gtk2-TrayIcon
Cloning into '/var/lib/mock/f45-build-23841-599/root/chroot_tmpdir/scmroot/perl-Gtk2-TrayIcon'...
$ git fetch origin c97cc3edea498cf4fac05fc1d94d057f37c98bc4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Gtk2-TrayIcon
 * [new ref]         c97cc3edea498cf4fac05fc1d94d057f37c98bc4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c97cc3e Perl 5.44 rebuild