$ git clone -n https://src.fedoraproject.org/rpms/plasma-workspace.git /var/lib/mock/f42-build-862422-170805/root/chroot_tmpdir/scmroot/plasma-workspace
Cloning into '/var/lib/mock/f42-build-862422-170805/root/chroot_tmpdir/scmroot/plasma-workspace'...
$ git fetch origin 5dffeaa62650049b7c18e2d0586dddb91cbfe65a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-workspace
 * [new ref]         5dffeaa62650049b7c18e2d0586dddb91cbfe65a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5dffeaa Rebuild for ICU 76