$ git clone -n https://src.fedoraproject.org/rpms/perl-Module-Install-TestTarget.git /var/lib/mock/f41-build-794248-13632/root/chroot_tmpdir/scmroot/perl-Module-Install-TestTarget
Cloning into '/var/lib/mock/f41-build-794248-13632/root/chroot_tmpdir/scmroot/perl-Module-Install-TestTarget'...
$ git fetch origin c939e37afe18a90590f089d0091df78cacfb8eae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Module-Install-TestTarget
 * [new ref]         c939e37afe18a90590f089d0091df78cacfb8eae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c939e37 Eliminate use of obsolete %patchN syntax (#2283636)